Risks in the investigation and diagnosis of gastrointestinal disease.
D001706:Biopsy / Q000009:adverse effects; D004724:Endoscopy / Q000009:adverse effects; D005767:Gastrointestinal Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D006801:Humans; D008722:Methods; D011859:Radiography / Q000009:adverse effects; D012306:Risk; D012812:Sigmoidoscopy / Q000009:adverse effects