[1] Osaka Int Canc Inst, Thorac Oncol, Osaka, Japan
[2] Kinki Chuo Chest Med Ctr, Internal Med, Sakai, Osaka, Japan
[3] Hyogo Prefectural Amagasaki Gen Med Ctr, Dept Resp Med, Amagasaki, Hyogo, Japan
[4] Kurashiki Cent Hosp, Dept Resp Med, Kurashiki, Okayama, Japan
[5] Himeji Med Ctr, Resp Med, Himeji, Hyogo, Japan
[6] Kobe City Med Ctr Gen Hosp, Resp Med, Kobe, Hyogo, Japan
[7] Osaka Habikino Med Ctr, Thorac Oncol, Habikino, Japan
[8] Osaka Prefectural Habikino Hosp, Thorac Oncol, Habikino, Japan
[9] Osaka Toneyama Med Ctr, Dept Thorac Oncol, Toyonaka, Osaka, Japan
[10] Toneyama Natl Hosp, Dept Thorac Oncol, Toyonaka, Osaka, Japan
[11] Osaka Gen Med Ctr, Resp Med, Osaka, Japan
[12] Kobe City Med Ctr West Hosp, Resp Med, Kobe, Hyogo, Japan
[13] Itami City Hosp, Resp Med, Itami, Hyogo, Japan