[Sigmoidoscopy and colonoscopy. Considerations on methodological strategy].
D003108:Colonic Diseases / Q000175:diagnosis*; D003113:Colonoscopy; D006801:Humans; D012002:Rectal Diseases / Q000175:diagnosis; D012810:Sigmoid Diseases / Q000175:diagnosis*; D012812:Sigmoidoscopy
Sigmoidoscopia e colonscopia. Considerazioni di strategia metodologica.