Impact of planning organ at risk volume margins and matching method on late gastrointestinal toxicity in moderately hypofractionated IMRT for locally advanced pancreatic ductal adenocarcinoma. - Ogawa, Ayaka; Yoshimura, Michio; Nakamura, Mitsuhiro; Adachi, Takanori; Iwai, Takahiro; Ashida, Ryo; Mizowaki, Takashi (Radiation Oncology, 2023)