Adherence and feasibility of 2 treatment schedules of S-1 as adjuvant chemotherapy for patients with completely resected advanced lung cancer: a multicenter randomized controlled t... oleh Yoshinobu Hata, Takaharu Kiribayashi, Kazuma Kishi, Makoto Nagashima, Takefumi Nakayama, Shingo Ikeda, Mitsutaka Kadokura, Yuichi Ozeki, Hajime Otsuka, Yoshitaka Murakami, Keigo Takagi, Akira Iyoda