Carcinoma of the rectum and anal canal; treatment with very high voltage X-ray therapy.
D001003:Anal Canal; D002277:Carcinoma; D006801:Humans; D009369:Neoplasms / Q000532:radiotherapy*; D012004:Rectal Neoplasms; D012007:Rectum; D014964:X-Ray Therapy
CANCER/radiotherapy; RECTUM/cancer