[1] Ohio State Univ, Wexner Med Ctr, Columbus, OH 43210 USA
[2] Johns Hopkins Univ Hosp, Baltimore, MD 21287 USA
[3] Fundeni Clin Inst, Bucharest, Romania
[4] Curry Cabral Hosp, Lisbon, Portugal
[5] Osped San Raffaele, Milan, Italy
[6] Emory Univ, Atlanta, GA 30322 USA
[7] Royal Prince Alfred Hosp, Sydney, NSW, Australia
[8] Univ Virginia, Charlottesville, VA USA
[9] Eastern Hepatobiliary Surg Hosp, Shanghai, Peoples R China
[10] Stanford Univ, Stanford, CA 94305 USA
[11] Beaujon Hosp, Paris, France
[12] Univ Ottawa, Ottawa, ON, Canada
[13] Erasmus Univ, Med Ctr, Rotterdam, Netherlands
[14] Univ Verona, Verona, Italy
[15] Yokohama City Univ, Sch Med, Yokohama, Kanagawa, Japan