A Single-Institution Prospective Study To Evaluate the Safety and Efficacy of Real- Time Image-Gated Spot-Scanning Proton Therapy (RGPT) for Prostate Cancer oleh Kentaro Nishioka, MD, PhD, Takayuki Hashimoto, MD, PhD, Takashi Mori, MD, PhD, Yusuke Uchinami, MD, PhD, Rumiko Kinoshita, MD, PhD, Norio Katoh, MD, PhD, Hiroshi Taguchi, MD, PhD, Koichi Yasuda, MD, PhD, Yoichi M. Ito, PhD, Seishin Takao, PhD, Masaya Tamura, PhD, Taeko Matsuura, PhD, Shinichi Shimizu, MD, PhD, Hiroki Shirato, MD, PhD, Hidefumi Aoyama, MD, PhD