Clinical Impact of Reducing Planning Target Volume Margins During Radiation Therapy for Localized Prostate Cancer: Early Outcomes of a 2-Stage Prospective Trial. - Alayed, Y.; Craig, T.; Catton, C.N.; Warde, P.R.; Chung, P.; Bayley, A.; Panzarella, T.; Menard, C. (International Journal of Radiation Oncology, Biology, Physics, 2015)