Mass survey and treatment of malignancies of the rectum: a retrospect report.
D000230:Adenocarcinoma / Q000453:epidemiology; D000328:Adult; D000368:Aged; D002276:Carcinoid Tumor / Q000453:epidemiology; D002294:Carcinoma, Squamous Cell / Q000453:epidemiology; D002681:China; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D012004:Rectal Neoplasms / Q000453:epidemiology* / Q000601:surgery; D012189:Retrospective Studies