title: Physician or technician?
authors.forename: J L
authors.initials: JL
authors.lastname: Achord
mesh_terms: D016099:Endoscopy, Gastrointestinal / Q000592:standards* / Q000706:statistics & numerical data; D005767:Gastrointestinal Diseases / Q000175:diagnosis / Q000453:epidemiology; D006801:Humans; D017410:Practice Guidelines as Topic; D012017:Referral and Consultation / Q000592:standards / Q000706:statistics & numerical data; D018570:Risk Assessment; D012955:Societies, Medical