Epidemiological and therapeutic profiles of lung cancer patients in the Hokushin Region Japan: a retrospective hospital administrative database study

Takashi Kobayashi, Yoshikazu Nishino, Tomoya Takiguchi, Shintaro Kanda, Kengo Otsuki, Yuriko Tanaka, Yozo Nakazawa, Ken ichi Ito, Ryuji Hayashi, Kazuo Yasumoto, Hidetaka Uramoto, Yasuo Hirono, Tomoe Makino, Mitsutoshi Nakada, Seiji Yano, Tomonobu Koizumi^*