The visible vessel: curse or blessing?
D000818:Animals; D001808:Blood Vessels; D004724:Endoscopy; D005336:Fiber Optic Technology; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis* / Q000188:drug therapy / Q000601:surgery; D006801:Humans; D010438:Peptic Ulcer Hemorrhage / Q000175:diagnosis* / Q000601:surgery; D012008:Recurrence; D012306:Risk