[1] Univ Zurich Hosp, Dept Surg, CH-8091 Zurich, Switzerland
[2] Columbia Univ, Coll Phys & Surg, Ctr Liver Dis, New York, NY 10027 USA
[3] Univ Texas, MD Anderson Canc Ctr, Dept Surg Oncol, Houston, TX 77030 USA
[4] Hop Beaujon, Dept HPB Surg, Paris, France
[5] Vanderbilt Univ, Med Ctr, Dept Surg, Nashville, TN USA
[6] Vanderbilt Univ, Med Ctr, Dept Canc Biol, Nashville, TN USA
[7] Washington Univ, Sch Med, Div HPB Surg, St Louis, MO 63130 USA