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Knowledge of antibiotic resistance and antibiotic prescription practices among prescribers in the Brong Ahafo Region of Ghana; a cross-sectional study

BMC Health Services Research volume 17, Article number: 422 (2017) Cite this article

Abstract

Background

Antibiotic resistance (ABR) has become a major public health challenge in most parts of the world including Ghana and is a major threat to gain in bacterial disease control. The role of prescribers in the control of antibiotics is identified as crucial in developing interventions to control ABR. To guide policy recommendations on ABR, a study was carried out among prescribers to identify gaps in their knowledge of ABR and to document their prescription practices.

Method

A cross-sectional survey was conducted among prescribers from both public and private facilities in the Brong Ahafo Region of Ghana using both quantitative and qualitative methods in 2014.

Results

Three hundred and seventy nine prescribers participated in the quantitative study and a subset of 33 participated in in-depth interviews. Majority (50.0%) of the prescribers interviewed were nurses. Most (51.0%) of the prescribers were located in hospitals. Knowledge of ABR was high among all the prescribers. About 80.0% percent of all prescribers agreed that the antibiotics that are currently used could lose its efficacy in future. There is no singular formal source of information on antibiotic resistance. The prescribers held a strong perception that antibiotic resistance is imminent though their knowledge on various resistant bacterial strains was limited. Prescribers attributed ABR burden to factors such as poor prescription practices and limited ABR control measures. The prescription practices of the prescribers vary but were mostly inappropriate among the lower cadre.

Conclusion

The knowledge of ABR is high among prescribers. There is however a gap in the knowledge and perception of optimal antibiotic prescription practices among prescribers. There is the need for a formal source of information on ABR to support prescriber’s antibiotic prescription practices.

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Background

Antibiotic resistance (ABR) has become a major public health challenge in most parts of the sub-Saharan Africa including Ghana [1, 2]. Several studies have reported the escalating prevalence of ABR to cheap and available antibiotics in less developed countries [3,4,5,6,7]. For instance some studies carried out in Ghana in 2011 showed that the bacterial resistance to drugs such as chloramphenicol [8, 9], tetracycline, ampicillin and co-trimoxazole is high (>70%) [5].

The high burden of ABR has been an existing concern [10, 11] that has the potential of impeding appropriate health care [12] and reducing the success of child survival especially in developing countries [13] where infectious diseases are still high [14, 15], health systems are weak [16] and where the high levels of poverty [17] may make new efficacious antibiotics inaccessible to many patients. If unattended to, the effects of ABR will be similar to the consequence of chloroquine resistance observed in the late 1990s i.e. a reversal of success made to disease control [13, 18,19,20].

ABR can be associated with misuse of antibiotics as a result of several factors including inappropriate prescription by prescribers and misuse of antibiotics by patients [5, 12, 21]. Inappropriate prescription of antibiotics is found to be positively correlated with inappropriate use of antibiotics [21]. Interventions to curtail the increasing burden of ABR are therefore urgently needed. Many intervention programs [22] including education for prescribers and consumers (population) have been recommended to help elicit the judicious and appropriate use of antibiotics [23].

Ghana recognizes the increasing burden of ABR and is in the process of establishing policies to prevent and manage it. The role of prescribers is identified as crucial in developing interventions to control ABR [24]. The knowledge, perception, and practices of prescribers on antibiotic use and resistance was conducted to identify gaps to guide policy recommendations to curb ABR in Ghana.

Method

Study design

A cross-sectional survey was conducted among prescribers from both public and private facilities in the Brong Ahafo Region of Ghana using both quantitative and qualitative methods from January to March 2014.

Study area

Brong Ahafo Region is one of the ten regions in Ghana. The region is made up of 27 districts and municipalities. It is the second largest region in Ghana and spans across a total landmass of 39,557 km2. Majority of the population are Akans. Christianity is the most common religion (70.8%) among the population. Illiteracy rate is high: 48.5% of persons aged 15 years and above cannot read or write in any language and about 42.0% of children are not in school [25]. The study area has one regional hospital, 27 district/municipal hospitals, 35 health centers and 102 Community Based Health Planning and Service (CHPS) compounds. These health facilities are classified into levels A, B and C. Level A is a CHPS compound, level B is a health center and level C is a hospital. Level C facilities serve as referral centers for the levels A and B facilities. There are 118 Medical Doctors (MD), 387 Physician Assistants (PA), 606 general nurses and 1094 Community Health Officers (CHOs) in the region [26]. In Ghana, the training duration for community health officers, nurses, physician assistants and medical doctors is 2, 3, 4 and 6 years respectively.

Study approach

Quantitative approach

Sampling procedure

Medical doctors, physician assistants, nurses and community health officers were recruited to participate in the study. In each health facility, a list of medical doctors, physician assistants, nurses, and community health officers was obtained. The names of all prescribers at each health facility was written on paper and concealed by folding. The prescribers interviewed were randomly selected using a lottery method. The prescribers whose names were selected participated in the study. In cases where the number of prescribers present were equal to or less than the number required, all the prescribers were interviewed.

Quantitative data collection tool

All selected respondents were consented and interviewed by trained research officers, using pretested close ended questionnaires. A two paged tool with 38 questions was used to collect the quantitative data. Questions were asked to explore the knowledge of prescribers on rational antibiotic use. Prescribers responses to disease symptoms and hypothetical case scenario management was also used as a proxy to assess their knowledge on antibiotic use. The data collection instruments were pre-tested among the different category of study participants (3 medical doctors, 2 physician assistants, 5 nurses and 2 community health officers) whose data were not included in the final analysis. The questions and approach of data collection was modeled on the WHO’s standard methodology for investigating drug use in health facilities [27].

Qualitative approach

In-depth interviews

In- depth interviews were conducted among a subset of prescribers until there was no new emerging issues. The moderator was guided by a two paged tool with open ended questions. The in-depth interview tool was used to explore the perception of prescribers on ABR and patient demand for antibiotics.

The interviews were conducted in English. The moderator sought for the respondent’s consent to record and take notes on all discussions and assured respondent of confidentiality, anonymity and privacy. All recorded interviews were transcribed verbatim. Interviews were conducted between 1 and 2 h among the doctors and physician assistants.

Sample size calculation

The sample size was calculated using STATA version 12 (StataCorp, College Station, Texas 77,845 USA) It was assumed that about 70.0% of prescribers would know about ABR. At a power of 80 and 95% confidence level, a minimum of 374 prescribers was required to estimate the knowledge of ABR among prescribers in the study area assuming a worst estimate of not greater than 63.0%.

Data management

Completed quantitative questionnaires were checked for completeness and consistency prior to further data management at the Kintampo Health Research Centre Computer Laboratory. Data was double entered into a password-protected Microsoft FoxPro version 9.0 database. In order to protect the integrity of participants’ responses from interviews and survey questionnaires, all data related to the person was de-identified. Qualitative data was transcribed verbatim and coded electronic data are stored in password-protected computers. Data in hard copies, including survey questionnaires have been kept in locked boxes/file cabinets. Only members of the study team have access to project data. All data is reported as anonymous without making reference to specific individuals.

Data analysis

STATA version 11 was used to analyze data from the survey. Simple proportions have been used to describe categorical and numerical data respectively. The Fisher’s exact was performed to test for significant association between knowledge level and category of prescribers.

In the qualitative analysis, a coding list was generated based on common themes that arose from the interviews. At least two research staff independently reviewed the data, to formulate preliminary coding and to ensure inter coder reliability and data quality. Established codes were applied to all transcripts for final analysis. QSR Nvivo version 10 qualitative software was used for the qualitative data management. Transcripts were reviewed for thematic content. The findings are presented using quotes from interviews to illustrate the major themes.

Results

A total of three hundred and seventy nine prescribers participated in the quantitative study and a subset of 33 participated in in-depth interviews. Majority (50.0%) of the prescribers interviewed were nurses (Table 1). Thirteen percent of prescribers had practiced for more than 10 years (Table 1). Most (51.0%) of the prescribers were located in Level C facility type (Hospitals) (Table 1).

Table 1 Profile and Length of Service of prescribers (N = 379)
Full size table

Knowledge of ABR and use among prescribers

About 81.8% of all prescribers agreed that the antibiotics that are currently used may not be effective in future. The proportion of prescribers who agreed to this was significantly highest among doctors (96.1%) compared with community health officers (CHOs) (69.0%) p < 0.01 (Table 2a).

Table 2 Knowledge of ABR and antibiotic use among health professionals
Full size table

Nineteen percent of the prescribers agreed that antibiotics can be added to malaria prescriptions to make patients recover faster. This was significantly higher among CHOs (38.0%) compared with doctors (3.9%) p < 0.01. Compared with CHOs, a significantly high proportion of doctors agreed that the use of antibiotics could lead to dangerous allergies which could cause death (p < 0.01) and disagreed that antibiotics will always be effective in the treatment of same infections in the future, p < 0.01 (Table 2b).

Sources of knowledge about antibiotic use and resistance

The sources of information on antibiotic use and resistance among the prescribers included email alerts from platforms they subscribe to, lectures at general meetings of professional associations, books, and GHS/FDB bulletin or circulars (Table 3). The core of their knowledge was acquired during their formal training as demonstrated in the comment below:

“Aside my knowledge from school, I also learn from the BNF- British National Formulary, it has all the medications that we prescribe so, if you want to check the dose, you just refer to it and also from our standard treatment guide and also from senior colleagues” (IDI, MD)

Table 3 Health professionals source of information on ABR and use
Full size table

There were no differences in the sources of information among the different health professionals and there was no specific channel for obtaining information on ABR as alluded to below.

“Yes because we don't have any official source of information about antibiotics and when you browse [the internet] the information is not straight forward. If we are able to get a main source of information about antibiotics it will be well” (IDI, PA)

Barriers to prescribers access to antibiotic related information is limited by lack of internet facility, lack of a uniform source of information and lack of local data on patterns of ABR.

Perception of the burden of ABR

Generally, the prescribers perceived ABR as a very crucial issue that needs to be addressed. Their perception of ABR burden was mainly informed by its impact on Multidrug Resistant Mycobacterium tuberculosis control and to a less extent about the control of other infections such as Methicillin Resistant Staphylococcus aureus. The prescribers perceived ABR could have serious consequences on mortality trends and health expenditure as demonstrated below:

“That is the most dangerous thing that can happen to mankind. We may move to the last limit where we cannot get any antibiotics to treat certain diseases. Talking about antibiotics, if you look at treatment of TB, which is a bacterium. We are strict because it is a combination course. If you joke and one of them develops a resistance, the other three cannot do anything. And to get another drug that will work like the former one doesn’t take 1 day. It takes a period. And the cost of it is also another thing…. So we need to be careful with antibiotics especially if mankind wants to live long on this earth” (IDI, PA)

Perception of causes of ABR

Prescribers perception of causes of ABR were several. Their perceptions include antibiotic over prescription, irrational prescription of antibiotics, patient non-compliance to medications, unregulated dispensing of antibiotics leading to over the counter purchases. During the in-depth interviews the prescribers shared their perceptions regarding ABR from different perspectives.

“...Most of the hospitals also don’t have machines for culture sensitivity to actually isolate the real bacteria that is causing the disease. So just prescribing any form of antibiotic may increase the resistance. (IDI, PA)

“…antibiotic resistance is possible because in Ghana .., you can go to any drug store and buy any antibiotics without any prescription or these days we don’t know the source of medication that we are getting whether they are the correct or the fake ones. The efficacy level is questionable.” (IDI, MD)

However, health facility preventive measures such as hand washing, use of cleaning solutions, and sterilization were rarely mentioned by the prescribers.

Practices of antibiotic use and health worker’s rational in selecting antibiotics

To learn about prescription practices, Upper Respiratory Tract Infections (URTI) was presented as case scenario to prescribers.

Most of prescribers indicated that they diagnose URTI using the patient’s complaints and physical examination and to a less extent laboratory confirmation of the causative agents. URTIs are often treated presumptively with antibiotics of varying types depending on the disease progression or severity at presentation. In some cases, second and third generation antibiotics are primarily used. Not all prescribers adhere to the Ghana National Treatment Guidelines in their choice of antibiotics for treating URTI. This is illustrated by the following quotes:

“Most of the URTIs practically are viral infections and not bacteria. However, if I establish that the cause of the URTI is a bacteria then I give antibiotics. As first line treatment I give amoxicillin for the typical ones or azithromycin for the atypical ones. But if the patient have already gone for the first line treatment drug, then I give the second line treatment drugs like amoxiclav and other higher antibiotics. But for kids and toddlers I give flucloxacillin for the start because the cause is usually gram positive, staph [Staphyloccocus] and strep.[Streptococcus] infection” (IDI, MD)

Prescribers rationale for their choice of antibiotics in treating patients is also influenced other factors such as patient’s ability to pay for the antibiotic, antibiotic availability patient drug history, allowable restrictions of antibiotic at the level of the facility, allowable antibiotics on insurance protocols, feedback on recovery due to treatment, patient age, medical history of the patient, and clinician wanting to impress patient. A prescriber had this to say:

“The number one reason is the insurance. You always want to prescribe what the patients will get in your facility; the second factor is affordability of the patient, if the patient can afford some of the high ones you can prescribe for them and the third factor will be previous drug history, what has the patient taken before coming to you. You don’t want to continue on the same line. The other factor will be patient choice, sometimes you have to agree with the patient” (IDI, MD)

The prescribers shared different experiences on patient’s demand for antibiotics. Prescribers do not mostly consider patients expectations in the prescription of antibiotics. However, patients who are able demonstrate why they should be prescribed a particular antibiotic may receive what they ask for. Also, patients who may have had a bad experience with a particular antibiotic may not accept the same the antibiotic if it is prescribed for them. Patients who are educated demand specific antibiotics but the less educated ones accept whatever is prescribed for them.

Prescribers also hold the perception that they know the best drugs for the patients’ illness.

“…. No! As a clinician no! If the patient comes to me with an expectation, then it is my job to explain to the patient… in certain cases it maybe what you wanted to prescribe then it makes your work easier but if it is not, I will take my time and educate the patient on what I think is best for the patient” (IDI, MD)

“You will have that problem of being influenced by patients who are educated and also the health staff themselves on the UTI (urinary tract infections), they will request specifically for some type of antibiotic but for the general population, they rely on what we prescribe for them. ” (IDI, MD)

Knowledge of health facility infection control committee and drug or therapeutic management committees

Knowledge on the availability of an infection control committee was assessed among the prescribers. About 47.0% (178/379) of prescribers indicated non -availability of infection control committees in their facilities. Only 16.4% of prescribers reported of functional Drug Therapeutics Committee (DTC) in their facility. There was a significant difference in prescribers knowledge of a functional DTC in their facility (19.6% doctors, 20.3% PAs, 18.1% nurses and 5.6% CHOs; p < 0.01).

Discussion

Prescribers are an important group of persons in the control of ABR. They are most likely to prevent ABR in their practice and advice patients on ABR if they are themselves aware of ABR. In this study, the knowledge and perception of antibiotic resistance among prescribers in the Brong Ahafo Region of Ghana was assessed. Most cadres of prescribers interviewed were knowledgeable about ABR. Most prescribers knew that the antibiotics we are using today can be ineffective in the future. There was however a significant gap in the knowledge of antibiotic use among the health professionals especially among the lower cadre of staff. It is important that this gap is bridged as the lack of knowledge of appropriate antibiotic use is likely to lead to inappropriate antibiotic stewardship and subsequently lead to antibiotic resistance. An intervention to improve antibiotic knowledge and enhance antibiotic stewardship especially among the lower cadre of prescribers is very crucial because they form the majority of prescribers in health facilities and are the frontline professionals in healthcare. In Ghana, there are no systematic programs to monitor antibiotic prescription practices among prescribers [2] and the results of this study will support the call for an urgent action against ABR in Ghana [5, 28].

Several varying factors such as existing health care systems influence antibiotic use and misuse in various parts of the world [29, 30]. The absence of diagnostic test at health facilities is likely to affect adherence to disease treatment protocols to prevent ABR. Almost all the prescribers interviewed knew that antibiotics are used to manage bacterial infections. However, though some prescribers knew that common cold are mostly caused by viral infections, they presumptively treat patients with antibiotics. The main reason for presumptive treatment of suspected bacterial disease is mainly due to the lack of laboratory facilities to isolate the causative organisms and also due to the syndromic approach in patient management at the community level. This practice is likely to lead to over prescription of antibiotics and subsequently bacterial resistance to available cheap antibiotics and poor management of other nonbacterial diseases. Rapid diagnostic test that could differentiate between bacterial and other infections will be important in supporting decisions to prescribe antibiotics and to reconsider syndromic approach to treatment at the lower level of care [27].

Prescribers were worried about ABR and the fact that it can be a very huge public health set back. This knowledge of the potential problem of ABR creates the opportunity for adequate health education among all cadres of prescribers about ABR.

Our finding that amoxicillin is the first line presumptively prescribed antibiotic is similar to reports of other studies that indicates that the first generation of penicillin is mostly prescribed [31, 32]. There is increasing evidence that a number of gram-negative organisms are developing resistance to amoxicillin and the frequent presumptive use of it may have a role in the emerging resistance [33, 34].

In this study, prescribers’ prescriptions were sometimes influenced by patient’s request. This finding is similar to that reported by Rodrigues et al. [35] and Abera et al. [36] In their studies, patients’ influence on prescribers to prescribe specific antibiotics was identified as one of the main factors for excessive antibiotic prescription. Though patient involvement in disease management is important to enhance disease cure, it is crucial that prescribers prescribe antibiotics based on scientific and medical basis. Prescribers rationale for their choice of antibiotics should therefore be explained to patients to enhance drug compliance.

In this study, there was no knowledge of an established ABR surveillance system where prescribers can source for information on ABR patterns in areas where they work. This is not surprising as Ghana has no formal ABR surveillance system as occurs in all other countries in the World Health Organisation (WHO) African region. [37] It is important that a national or regional ABR surveillance system such as European Center for Diseases Antimicrobial Resistance Surveillance Network [38, 39] be established to regularly update and disseminate ABR data to all health workers through effective platforms such as email or other electronic alerts, news bulletins, or through memos to all health facilities.

The role of hospital infection prevention protocols are important to prevention of bacterial resistant strains such as Methicilin Resistant Staploccous aureus (MRSA) [40]. In this study, the knowledge of current drug resistant strains of bacteria apart from Multidrug Resistant Mycobacterium Tuberculosis was limited. Specifically, the knowledge of extended-spectrum beta-lactamases producing Enterobacteriaceae was limited though there was an outbreak in a major hospitals in Ghana [28] and reports of other resistant bacterial stains [41, 42]. In discussing causes of drug resistance, hospital infection control was also least mentioned as potential cause of drug resistance though the Ministry of Health of Ghana has an established policy on infection control [40]. This is not surprising as less than 50% of respondents knew about their institutions infection control protocols. A functional Drug and Therapeutic Committee (DTC) in health facilities is important in ensuring rational drug prescriptions. In this study, less than 20% of respondents indicated that there was an existing functional DTC [43]. There is the need to strengthen infections control policies and DTC as institutional steps in preventing ABR.

Conclusion

The knowledge of ABR is high among prescribers. There is however a gap in the knowledge and perception of optimal antibiotic prescription practices among health professionals. There is the need for a formal source of information of ABR to support prescriber’s antibiotic prescription practices.

Abbreviations

ABR:

Antibiotic resistance

CHOs:

Community health officers

CHPS:

Community based health program and service

DTC:

Drug therapeutic committee

FDB:

Food and drugs board

GHS:

Ghana Health Service

IDI:

In depth interviews

MD:

Medical doctor

PA:

Physician assistant

URTI:

Upper respiratory tract infection

UTI:

Urinary tract infection

WHO:

World Health Organisation

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Acknowledgements

The authors are grateful to the management of the following institutions and persons for their contribution to the conduct of this study: Ministry of Health and Ghana Health Service; ReACT, Ghana Antimicrobial Resistance Working Group, Regional Health Directorate and health institutions in the Brong Ahafo Region of Ghana; Kintampo Health Research Centre and all study participants.

Funding

This study was funded by the Ministry of Health, Ghana.

Availability of data and materials

The datasets used and/or analysed during the current study are available from the corresponding author or at enquiries@kintampo-hrc.org on reasonable request. The study materials are included as Additional file 1.

Authors’ contributions

KPA, MGL conceived the study idea. EAB and AM lead the study implementation under the supervision of KPA, SOA, EG and MGL. The data was managed and analyzed by FD, EM, EAB, MA, KPA and SOA. The data was interpreted by KPA, EAB, MA, KB, EAA, SOA and MGL. All authors contributed to the manuscript writing and approved of the manuscript.

Authors’ information

KPA is a Clinical Epidemiology and the Head of Research at Kintampo Health Research Center (KHRC) in Ghana and a member of the Ghana Antimicrobial Resistance Working Group. MGL is the Director of Pharmaceutical Services of Ghana Ministry of Health and the Chairperson of the Ghana Antimicrobial Resistance Working Group. EAB, AM, FD, EM, are Research Fellows at KHRC. SOA is an Epidemiologist and the Director of KHRC. KOB is a Pharmacist and a Senior Lecturer at the Faculty of Pharmacy and Pharmaceutical Services at the College of Health Sciences, Kwame Nkrumah University of Science and Technology, Ghana. He is also the Vice Chair Person of the Ghana Antimicrobial Resistance Working Group. EG is the Programme Manager for the Ghana National Drugs Programme at the Ministry of Health. EAA is the Country Adviser for Medicines, Health Technologies and Laboratories at the World Health Organisation country office in Ghana.

Competing interests

Authors declare that they have no competing interest. Whether financial or non-financial.

Consent for publication

Not applicable.

Ethics approval and consent to participate

The study was approved by the Kintampo Health Research Center Scientific Review Committee, the Kintampo Health Research Center Institutional Ethics Committee (Federal Wide Assurance number 0011103) and the Ghana Health Service Ethics Review Committee. Approval was also obtained from the management of all the selected health facilities. Written informed consent was sought from respondents. Confidentiality of subjects was protected at all times and respondents were free to decline to participate at any time or to withdraw from the study.

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Authors and Affiliations

  1. Kintampo Health Research Centre, Ghana Health Service, Kintampo, Brong Ahafo Region, Ghana

    Kwaku Poku Asante, Ellen Abrafi Boamah, Martha Ali Abdulai, Emmanuel Mahama, Francis Dzabeng & Seth Owusu-Agyei

  2. Faculty of Pharmacy & Pharmaceutical Services, College of Health Sciences, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana

    Kwame Ohene Buabeng

  3. Ghana National Drugs Programme, Ministry of Health, Accra, Ghana

    Edith Gavor & Martha Gyansa-Lutterodt

  4. World Health Organization, Ghana Country Office, Accra, Ghana

    Edith Andrews Annan

Authors
  1. Kwaku Poku Asante
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  2. Ellen Abrafi Boamah
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  3. Martha Ali Abdulai
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  4. Kwame Ohene Buabeng
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  5. Emmanuel Mahama
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  7. Edith Gavor
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  8. Edith Andrews Annan
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  9. Seth Owusu-Agyei
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  10. Martha Gyansa-Lutterodt
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Consortia

On behalf of the Ghana Antimicrobial Resistance Working Group

Corresponding author

Correspondence to Kwaku Poku Asante.

Additional file

Additional file 1:

Study materials. (PDF 186 kb)

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Asante, K.P., Boamah, E.A., Abdulai, M.A. et al. Knowledge of antibiotic resistance and antibiotic prescription practices among prescribers in the Brong Ahafo Region of Ghana; a cross-sectional study. BMC Health Serv Res 17, 422 (2017). https://doi.org/10.1186/s12913-017-2365-2

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Keywords

BMC Health Services Research

ISSN: 1472-6963

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