Effects of genetic polymorphisms in the ABCB1 gene on clinical outcomes in patients with gastric cancer treated by second-line chemotherapy

Kohei Shitara, Keitaro Matsuo, Seiji Ito, Akira Sawaki, Hiroki Kawai, Tomoya Yokota, Daisuke Takahari, Takashi Shibata, Takashi Ura, Hidemi Ito, Satoyo Hosono, Takakazu Kawase, Miki Watanabe, Kazuo Tajima, Yasushi Yatabe, Hideo Tanaka, Kei Muro