TY - JOUR AU - Marijnen, C A TI - Radiotherapy does not compensate for positive resection margins in rectal cancer patients: report of a multicenter randomized trial JO - Int J Radiat Oncol Biol Phys IS - 05 VL - 55 PY - 2003 DO - 10.1016/S0360-3016(02)04291-8 SP - 1311 EP - 1320 N1 - et al. ER -