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. 2021 Oct 21;22:212. doi: 10.1186/s12875-021-01559-w

Table 3.

Study characteristics

Number of studies
Study methods
 Qualitative studies using interviews and open-ended questions 2
 Quantitative studies using questionnaires 19
Country
 United States 9
 Canada 3
 Israel 4
 Ireland 2
 Australia 3
Study population
 Physicians with various specialties 7
 General practitioners 7
 Rheumatologists 2
 Neurologists 1
 Oncologists 1
 Psychiatrists 1
 Pain specialists 1
 Dermatologists 1
Number of study subjects (physicians)
  ≤ 50 6
 51–200 6
  > 200 9