[1] Univ Colorado, Dept Surg, Div Surg Oncol, Sch Med, Anschutz Med Campus, Aurora, CO USA
[2] Johns Hopkins Univ, Sch Med, Dept Surg, Baltimore, MD 21205 USA
[3] Japanese Fdn Canc Res, Canc Inst Hosp, Dept Hepatobiliary & Pancreat Surg, Tokyo, Japan
[4] Fujian Med Univ, Dept Gen Surg, Union Hosp, Fuzhou, Peoples R China
[5] Tokyo Med & Dent Univ, Grad Sch Med, Dept Hepatobiliary Pancreat Surg, Tokyo, Japan
[6] Univ Colorado, Canc Ctr, Aurora, CO USA