[1] St Marianna Univ, Dept Chest Surg, Sch Med, Miyamae Ku, 2-16-1 Sugao, Kawasaki, Kanagawa 2168511, Japan
[2] St Marianna Univ, Dept Med Informat, Sch Med, Miyamae Ku, 2-16-1 Sugao, Kawasaki, Kanagawa 2168511, Japan
[3] Tottori Univ Hosp, Div Gen Thorac Surg, 36-1 Nishimachi, Yonago, Tottori 6838504, Japan
[4] Tokyo Med Univ, Dept Thorac Surg, Shinjuku Ku, 6-7-1 Nishishinjuku, Tokyo 1600023, Japan