title: Endorectal irradiation--conservative therapy for cure of early rectal cancers.
mesh_terms: D000230:Adenocarcinoma / Q000532:radiotherapy*; D001918:Brachytherapy / Q000379:methods*; D006801:Humans; D012004:Rectal Neoplasms / Q000532:radiotherapy*; D020694:Sigmoidoscopes