[1] Department of Surgery,
[2] Yukawa Gastrointestinal Hospital,undefined
[3] 2-10-2 Dohgashiba,undefined
[4] Tennoji-ku,undefined
[5] Osaka 543-0003,undefined
[6] Japan,undefined
[7] First Department of Surgery,undefined
[8] Kobe University,undefined
[9] School of Medicine,undefined
[10] 7-5-2 Kusunoki-cho,undefined
[11] Chuo-ku,undefined
[12] Kobe 650-0017,undefined
[13] Japan,undefined