Risk of subsequent primary cancers after carbon ion radiotherapy, photon radiotherapy, or surgery for localised prostate cancer: a propensity score-weighted, retrospective, cohort study

Osama Mohamad, Takahiro Tabuchi, Yuki Nitta, Akihiro Nomoto, Akira Sato, Goro Kasuya, Hirokazu Makishima, Hak Choy, Shigeru Yamada, Toshitaka Morishima, Hiroshi Tsuji, Isao Miyashiro, Tadashi Kamada