[1] Aichi Canc Ctr Hosp, Dept Thorac Oncol, Nagoya, Aichi, Japan
[2] Chiba Univ, Grad Sch Med, Dept Respirol, Chiba, Japan
[3] Natl Hosp Org Kinki Chuo Chest Med Ctr, Dept Internal Med, Sakai, Osaka, Japan
[4] Osaka Int Canc Inst, Dept Thorac Oncol, Osaka, Japan
[5] Gen Hosp, Kobe City Med Ctr, Dept Resp Med, Kobe, Hyogo, Japan
[6] Chiba Univ, Dept Med Oncol, Chiba, Japan
[7] Osaka Habikino Med Ctr, Dept Thorac Oncol, Habikino, Japan
[8] Osaka Gen Med Ctr, Dept Resp Med, Osaka, Japan
[9] Hyogo Prefectural Amagasaki Gen Med Ctr, Dept Resp Med, Amagasaki, Hyogo, Japan
[10] Tohoku Univ Hosp, Dept Resp Med, Sendai, Miyagi, Japan
[11] Hyogo Coll Med, Dept Thorac Oncol, Nishinomiya, Hyogo, Japan
[12] Kurashiki Cent Hosp, Dept Resp Med, Kurashiki, Okayama, Japan
[13] Natl Hosp Org Osaka Toneyama Med Ctr, Dept Thorac Oncol, Osaka, Japan
[14] Saiseikai Kumamoto Hosp, Div Resp Med, Kumamoto, Japan
[15] Saiseikai Utsunomiya Hosp, Internal Med, Pulm Div, Utsunomiya, Tochigi, Japan
[16] Saiseikai Suita Hosp, Dept Resp Med, Osaka, Japan
[17] Itami City Hosp, Dept Resp Med, Osaka, Japan
[18] Wakayama Med Univ, Dept Internal Med 3, Wakayama, Japan
[19] Kobe City Med Ctr, Gen Hosp, Dept Radiat Oncol, Kobe, Hyogo, Japan