Clinical symptoms, statistical data and diagnostic pitfalls of cancer of the rectum.
D005260:Female; D006470:Hemorrhage / Q000209:etiology; D006801:Humans; D008297:Male; D011859:Radiography; D012004:Rectal Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000453:epidemiology; D012812:Sigmoidoscopy