EP-1748: Mesorectal-only irradiation for early stage rectal cancer: Target volumes and dose to organs at risk. (May 2017) - Appelt, A.L.; Teo, M.; Christophides, D.; Peters, F.P.; Lilley, J.; Spindler, K.L.G.; Marijnen, C.A.M.; Sebag-Montefiore, D.