[1] Omagari Kosei Med Ctr, Thorac Surg, Daisen, Japan
[2] Tohoku Univ, Dept Resp Med, Grad Sch Med, Sendai, Japan
[3] Tohoku Univ, Grad Sch Med, Dept Radiat Oncol, Sendai, Japan
[4] Omagari Kosei Med Ctr, Dept Radiol, Daisen, Japan
[5] Hirosaki Univ, Grad Sch Med, Dept Resp Med, Hirosaki, Japan
[6] Iwate Med Univ, Div Pulm Med, Dept Internal Med, Sch Med, Morioka, Japan
[7] Miyagi Canc Ctr, Dept Resp Med, Natori, Japan
[8] Akita Kousei Med Ctr, Resp Med, Akita, Japan
[9] Yamagata Prefectural Cent Hosp, Dept Resp Med, Yamagata, Japan
[10] NHO Hokkaido Canc Ctr, Dept Resp Med, Sapporo, Japan
[11] Tohoku Univ, Dept Palliat Med, Sch Med, Sendai, Japan