Duodenal intubation.
D001706:Biopsy; D004386:Duodenum; D005471:Fluoroscopy; D005767:Gastrointestinal Diseases / Q000175:diagnosis; D006801:Humans; D007441:Intubation, Gastrointestinal / Q000295:instrumentation / Q000379:methods; D009765:Obesity / Q000150:complications; D010272:Parasitic Diseases / Q000175:diagnosis; D011187:Posture; D012633:Secretin
D012633:Secretin