title: Postoperative radiation therapy for rectal cancer: an interim analysis of a prospective, randomized multicenter trial in The Netherlands.
authors.forename: P A
authors.initials: PA
authors.lastname: Coucke
mesh_terms: D006801:Humans; D009426:Netherlands; D011446:Prospective Studies; D012004:Rectal Neoplasms / Q000532:radiotherapy* / Q000601:surgery