Original Article Comparative toxicity outcomes of proton‐beam therapy versus intensity‐modulated radiotherapy for prostate cancer in the postoperative setting Neha Vapiwala MD Corresponding Author E-mail address: vapiwala@uphs.upenn.edu Department of Radiation Oncology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania Corresponding author: Neha Vapiwala, MD, Department of Radiation Oncology, Perelman School of Medicine at the University of...