[1] Osaka Univ, Grad Sch Med, Dept Surg, Suita, Osaka 5650871, Japan
[2] Kinki Cent Hosp, Dept Surg, Kinki, Hyogo, Japan
[3] Suita Municipal Hosp, Dept Surg, Katayama, Osaka, Japan
[4] Sakai City Hosp, Dept Surg, Sakai, Osaka, Japan
[5] Osaka Med Ctr Canc & Cardiovasc Dis, Dept Surg, Osaka, Japan
[6] NTT W Osaka Hosp, Dept Surg, Karasugatsuji, Osaka, Japan
[7] Minoh City Hosp, Dept Surg, Osaka, Japan
[8] Kansai Rosai Hosp, Dept Surg, Amagasaki, Hyogo, Japan
[9] Osaka Natl Hosp, Natl Hosp Org, Dept Surg, Osaka, Japan
[10] Kyushu Univ, Med Inst Bioregulat, Div Mol & Surg Oncol, Dept Mol & Cellular Biol, Ohita, Japan