[1] Takarazuka City Hosp, Divison Med Oncol Pulm Med, Takarazuka, Japan
[2] Kobe City Med Ctr Gen Hosp, Dept Med Oncol, Kobe, Japan
[3] Kobe City Med Ctr Gen Hosp, Dept Resp Med, Kobe, Japan
[4] Kyoto Univ, Grad Sch Med, Dept Biomed Stat & Bioinformat, Kyoto, Japan
[5] Kurashiki Cent Hosp, Dept Resp Med, Kurashiki, Japan
[6] Natl Hosp Org, Nagoya Med Ctr, Dept Resp Med, Nagoya, Japan
[7] Miyagi Canc Ctr, Dept Resp Med, Natori, Japan
[8] Kurume Univ, Dept Respirol Neurol & Rheumatol, Sch Med, Kurume, Japan
[9] Shimane Univ, Sch Med, Dept Resp Med, Izumo, Japan
[10] Osaka Habikino Med Ctr, Dept Thorac Malignancy, Habikino, Japan