From my perspective ... a subspecialty in dermatological surgery.
Russell
T R
TR
fmp@facs.org
D000068:Accreditation; D003880:Dermatology / Q000193:education*; D004503:Education, Medical, Graduate / Q000592:standards; D012955:Societies, Medical; D013043:Specialties, Surgical / Q000193:education*; D014481:United States