[Polypi and cancer of the rectosigmoid. Critical analysis of the concept of degeneration and the hypothesis of relationship].
D012809:Colon, Sigmoid; D006801:Humans; D009369:Neoplasms; D011127:Polyps / Q000209:etiology*; D012811:Sigmoid Neoplasms
POLYPI/etiology; SIGMOID/neoplasms