RT Journal Article SR Electronic T1 Radical radiotherapy versus abdominoperineal resection as primary treatment of carcinoma of the lower rectum JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1183 OP 1184 VO 117 IS 10 A1 Langer, B. A1 Tovee, E. B. A1 Patel, S. YR 1977 UL http://www.cmaj.ca/content/117/10/1183.abstract