[1] Japanese Assoc Thorac Surg, Comm Sci Affairs, Tokyo, Japan
[2] Chiba Univ, Grad Sch Med, Dept Cardiovasc Surg, Chiba, Japan
[3] Univ Tsukuba, Dept Thorac Surg, Tsukuba, Ibaraki, Japan
[4] Hamamatsu Univ Sch Med, Dept Surg, Shizuoka, Japan
[5] Gunma Univ, Div Cardiovasc Surg, Dept Gen Surg Sci, Maebashi, Gumma, Japan
[6] Jichi Med Univ, Thorac Surg, Saitama Med Ctr, Omiya, Saitama, Japan
[7] Univ Tokyo Hosp, Dept Cardiac Surg, Tokyo, Japan
[8] Handa City Hosp, Cardiac Surg, Handa, Aichi, Japan
[9] Gifu Univ Hosp, Dept Gen Thorac Surg, Gifu, Japan
[10] Tohoku Univ, Grad Sch Med, Dept Surg, Sendai, Miyagi, Japan
[11] Sapporo Med Univ, Sch Med, Dept Cardiovasc Surg, Sapporo, Hokkaido, Japan
[12] Tohoku Med & Pharmaceut Univ Hosp, Dept Cardiovasc Surg, Sendai, Miyagi, Japan
[13] Fukushima Med Univ, Dept Gastrointestinal Tract Surg, Fukushima, Japan
[14] Univ Tokyo, Grad Sch Med, Dept Healthcare Qual Assessment, Tokyo, Kagoshima, Japan
[15] Kyoto Univ, Grad Sch Med, Dept Cardiovasc Surg, Kyoto, Japan
[16] Toho Univ, Sakura Med Ctr, Dept Cardiovasc Surg, Chiba, Japan
[17] Tochigi Canc Ctr, Div Thorac Surg, Toshigi, Japan
[18] Hiroshima Univ, Surg Oncol, Hiroshima, Japan
[19] St Marianna Univ, Sch Med, Dept Chest Surg, Kawasaki, Kanagawa, Japan
[20] Yokohama City Univ, Grad Sch Med, Dept Surg, Yokohama, Kanagawa, Japan
[21] Keio Univ, Dept Cardiovasc Surg, Tokyo, Japan
[22] Juntendo Univ, Sch Med, Dept Gen Thorac Surg, Tokyo, Japan
[23] Kanazawa Univ, Dept Cardiovasc Surg, Kanazawa, Ishikawa, Japan
[24] Mitsui Mem Hosp, Dept Cardiovasc Surg, Tokyo, Japan
[25] Natl Hosp Org Kyushu Canc Ctr, Dept Gastroenterol Surg, Fukuoka, Japan
[26] Kindai Univ, Fac Med, Dept Surg, Osaka, Japan
[27] Canc Inst Hosp, Dept Gastroenterol Surg, Tokyo, Japan
[28] Univ Toyama, Grad Sch Med, Dept Thorac & Cardiovasc Surg, Toyama, Japan
[29] Niigata Univ, Grad Sch Med & Dent Sci, Div Thorac & Cardiovasc Surg, Niigata, Japan
[30] Osaka Univ, Grad Sch Med, Osaka Police Hosp, Osaka, Japan