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Table 2 Search strategy in PubMed for image quality

From: Mobile X-ray outside the hospital: a scoping review

Search number  
1 “diagnostic” AND (“radiography” OR x ray* OR radiotherapy*)
2 mobile AND (“radiography” OR x ray* OR radiotherapy*)
3 transportable AND (“radiography” OR x ray* OR radiotherapy*)
4 portable AND (“radiography” OR x ray* OR radiotherapy*)
5 “Radiography” [Mesh] OR (#1) OR “x-rays” [Mesh]
6 Portable OR transportable OR mobile
7 #6 AND “Radiography” [Mesh] OR #1 OR “X-rays” [Mesh]
8 #1 OR #3 OR #4 AND #7
9 “diagnostic quality”
10 #quality”
11 “image quality”
12 #10 AND #8
13 “mammography” OR “ultrasound” OR “computered tomography” OR “Magnetic resonance” OR “Positron Emissions Tomography”
14 #12 NOT #13
15 #14 filters from publication date 2009/01/01
16 #15 filters English; Danish; Norwegian; Swedish
  1. * meaning that the database searched for all words with different grammars