1. General Thoracic Surgery, Saitama Cardiovascular and Respiratory Center
2. General Thoracic Surgery Hoshigaoka Medical Center, Japan Community Healthcare Organization
3. Division of Health Care, Osaka University Graduate School of Medicine
4. Division of Surgery, Teikyo University School of Medicine
5. General Thoracic Surgery, Keio University
6. General Thoracic Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital
7. General Thoracic Surgery, Saitama Medical University International Medical Center
8. General Thoracic Surgery, Saitama Medical University Saitama Medical Center
9. General Thoracic Surgery, Niigata Cancer Center Hospital
10. General Thoracic Surgery, Dokkyo Medical University