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Table 1 Inclusion and exclusion criteria

From: Telephone health services in the field of rare diseases: a qualitative interview study examining the needs of patients, relatives, and health care professionals in Germany

  Inclusion criteria Exclusion criteria
Population All potential patients (not only focusing on rare diseases), family members and physicians Studies regarding animals
Intervention Telephone services Email services, Internet platforms
Outcome Examination or improvement of helpline service or design
Evaluation of caller behaviour
Examination of helpline callers to examine their general health behaviour (not offering additional knowledge to helpline design)
Publication type Caller statistics, interviews and reviews Interventional studies
Language English, German, and French All other languages
Time frame All publications up to May 27th, 2016 None