Clinicopathological and molecular features of responders to nivolumab for patients with advanced gastric cancer =============================================================================================================== * Saori Mishima * Akihito Kawazoe * Yoshiaki Nakamura * Akinori Sasaki * Daisuke Kotani * Yasutoshi Kuboki * Hideaki Bando * Takashi Kojima * Toshihiko Doi * Atsushi Ohtsu * Takayuki Yoshino * Takeshi Kuwata * Akihito Tsuji * Kohei Shitara