1. Department of General Thoracic Surgery National Hospital Organization, Saitama Hospital Wako Japan
2. Second Department of Surgery School of Medicine University of Occupational and Environmental Health Kitakyushu Japan
3. Department of Respiratory Surgery Ichinomiya‐Nishi Hospital Ichinomiya Japan
4. Baba Clinic Kasuya‐gun Japan
5. Department of General Thoracic Surgery Chiba Rosai Hospital Ichihara Japan
6. Division of Biomedical Research Kitasato University Medical Center Kitamoto Japan
7. Department of Breast Surgery Shonan Kamakura General Hospital Kamakura Japan
8. Department of Thoracic Surgery Shin‐Komonji Hospital Kitakyusyu Japan
9. Department of Chest Surgery Iizuka Hospital Iizuka Japan
10. Department of Thoracic Oncology National Hospital Organization Kyushu Cancer Center Fukuoka Japan
11. Kitakyushu Municipal Moji Hospital Kitakyushu Japan