Tolerance of organs at risk in small-volume, hypofractionated, image-guided radiotherapy for primary and metastatic lung cancers

Rikiya Onimaru, Hiroki Shirato, Shinichi Shimizu, Kei Kitamura, Bo Xu, Shin Ichi Fukumoto, Ta Chen Chang, Katsuhisa Fujita, Masataka Oita, Kazuo Miyasaka, Masaharu Nishimura, Hirotoshi Dosaka-Akita