[1] Kobe Univ, Grad Sch Med, Dept Internal Med, Div Resp Med, Kobe, Hyogo, Japan
[2] Hiroshima City Hiroshima Citizens Hosp, Dept Resp Med, Hiroshima, Japan
[3] Natl Hosp Org Toneyama Hosp, Dept Thorac Oncol, Toyonaka, Osaka, Japan
[4] Izumi Municipal Hosp Canc Ctr, Med Oncol, Izumi, Japan
[5] NHO Nagoya Med Ctr, Dept Resp Med, Nagoya, Aichi, Japan
[6] Kobe City Med Ctr Gen Hosp, Dept Resp Med, Kobe, Hyogo, Japan
[7] Sendai Kousei Hosp, Dept Pulm Med, Sendai, Miyagi, Japan
[8] Kanagawa Cardiovasc & Resp Med, Dept Resp Med, Yokohama, Kanagawa, Japan
[9] Kurashiki Cent Hosp, Dept Resp Med, Kurashiki, Okayama, Japan
[10] Osaka Metropolitan Univ, Grad Sch Med, Clin Oncol Dept, Osaka, Japan
[11] Hyogo Canc Ctr, Resp Med Dept, Akashi, Hyogo, Japan
[12] Japanese Red Cross Okayama Hosp, Dept Resp Med, Okayama, Japan
[13] Takarazuka City Hosp, Med Oncol Dept, Takarazuka, Hyogo, Japan
[14] Kyoto Univ, Grad Sch Med, Dept Biomed Stat & Bioinformat, Kyoto, Japan
[15] Kyoto Univ, Fac Med, Kyoto, Japan
[16] Kindai Univ, Sch Med, Med Oncol Dept, Main Campus, Osaka, Japan
[17] Kyushu Univ, Dept Resp Med, Fukuoka, Japan
[18] Wakayama Med Univ, Internal Med 3, Wakayama, Japan