Doctor or technician.
Neale
G
G
D000368:Aged; D003113:Colonoscopy / Q000009:adverse effects*; D005762:Gastroenterology; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D007416:Intestinal Perforation / Q000209:etiology; D008297:Male; D010819:Physician's Role