1. Department of Pulmonary Medicine, Kyoto Prefectural University of Medicine , Kyoto , Japan
2. Department of Respiratory Medicine, Kanazawa University Hospital , Kanazawa , Japan
3. Department of Respiratory Medicine, Otsu City Hospital , Otsu , Japan
4. Department of Respiratory Medicine, Uji-Tokushukai Medical Center , Uji , Japan
5. Division of Medical Oncology, Department of Internal Medicine, Teikyo University Hospital , Tokyo , Japan
6. Department of Respiratory Medicine, Japanese Red Cross Kyoto Daiichi Hospital , Kyoto , Japan
7. Department of Respiratory Medicine, National Hospital Organization, Kanazawa Medical Center , Kanazawa , Japan
8. Department of Respiratory Medicine, Kitakyushu Municipal Medical Center , Kitakyushu , Japan
9. Division of Respiratory Medicine, Gunma Prefectural Cancer Center , Ota , Japan
10. Department of Respiratory Medicine, Nagasaki University Graduate School of Biomedical Sciences , Nagasaki , Japan
11. Department of Respiratory Medicine, Fukuoka University Hospital , Fukuoka , Japan
12. Future Medical Center, Hiroshima University Hospital , Hiroshima , Japan