Development of prediction models for the sensitivity of oral squamous cell carcinomas to preoperative S-1 administration oleh Masashi Shiiba, Hitomi Yamagami, Tadashi Sudo, Yosuke Tomokuni, Daisuke Kashiwabara, Tadaaki Kirita, Jingo Kusukawa, Masamichi Komiya, Kanchu Tei, Yoshimasa Kitagawa, Yutaka Imai, Hitoshi Kawamata, Hiroki Bukawa, Kazuhito Satomura, Hidero Oki, Keiji Shinozuka, Kazumasa Sugihara, Tsuyoshi Sugiura, Joji Sekine, Hidetaka Yokoe, Kengo Saito, Hideki Tanzawa