Anterior resection for carcinoma of the upper rectum and rectosigmoid.
D002277:Carcinoma; D012809:Colon, Sigmoid; D006801:Humans; D007420:Intestine, Large; D012004:Rectal Neoplasms; D012007:Rectum; D012811:Sigmoid Neoplasms
RECTUM/neoplasms; SIGMOID/neoplasms