1. Division of Thoracic Surgery, National Cancer Center Hospital East, Chiba
2. Division of Thoracic Oncology, National Cancer Center Hospital East, Chiba
3. Division of Thoracic Oncology, National Cancer Center Hospital, Tokyo
4. Department of Radiology, St. Marianna University School of Medicine, Kawasaki, Kanagawa
5. Division of Radiology, Nagoya City University Hospital, Nagoya
6. Division of Cancer Immunology, Research Institute/Exploratory Oncology Research & Clinical Trial Center (EPOC), National Cancer Center, Tokyo, Chiba
7. JCOG Data Center/Operations Office, National Cancer Center Hospital, Tokyo
8. Clinical Research Support Office, National Cancer Center Hospital East, Kashiwa, 277-8577
9. Division of Thoracic Surgery, National Cancer Center Hospital, Tokyo, Japan