1. Department of Respiratory Medicine Yokohama Municipal Citizen’s Hospital Kanagawa Japan
2. Department of Respiratory Medicine Shin Koga Hospital Fukuoka Japan
3. Department of Internal Medicine Niigata Cancer Center Hospital Niigata Japan
4. Department of Pulmonary Medicine, Infection and Oncology Nippon Medical School Tokyo Japan
5. Department of Medical Oncology Chiba University Chiba Japan
6. Department of Respiratory Medicine Toho University Tokyo Japan
7. Department of Thoracic Oncology Kanagawa Cancer Center Kanagawa Japan
8. Department of Respiratory Medicine Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital Tokyo Japan
9. Department of Thoracic Oncology Shikoku Cancer Center Ehime Japan
10. Division of Medical Oncology Kanazawa University Cancer Research Institute Ishikawa Japan
11. Department of Respiratory Medicine Tochigi Cancer Center Tochigi Japan
12. Department of Biostatistics Yokohama City University Kanagawa Japan