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