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. 2022 Jan 14;11:10. doi: 10.1186/s13643-021-01882-4

Table 2.

The number of medical specialists according to the American Board of Medical Specialties

No. American Board of Medical Specialties Studies Participants
1 Allergy and Immunology - -
2 Anesthesiology 4 342
3 Colon and Rectal Surgery - -
4 Dermatology - -
5 Emergency Medicine - -
6 Family Medicine 3 296
7 Internal Medicine 11 2,108
8 Medical Genetics and Genomics - -
9 Neurological Surgery 1 24
10 Nuclear Medicine - -
11 Obstetrics and Gynecology 5 326
12 Ophthalmology - -
13 Orthopaedic Surgery - -
14 Otolaryngology - Head and Neck Surgery 1 49
15 Pathology - -
16 Pediatrics 6 2,130
17 Physical Medicine and Rehabilitation 3 104
18 Plastic Surgery - -
19 Preventive Medicine - -
20 Psychiatry and Neurology 2 22
21 Radiology - -
22 Surgery 3 564
23 Thoracic Surgery - -
24 Urology - -
Total 39 5,965