1 Department of Surgery, Hepato-Pancreato-Biliary Surgery, St. Elizabeth's Medical Center, Boston University School of Medicine, Boston, MA, USA.
2 Tufts University School of Medicine, Boston, MA, USA.
3 University of California San Diego School of Medicine, San Diego, CA, USA.
4 Faculty of Medicine, Universidad del Desarrollo, Santiago, Chile.
5 Hepatobiliary Surgery Unit, Fondazione "Policlinico Universitario A. Gemelli" IRCCS, Università Cattolica del Sacro Cuore, Milan, Italy.
6 Department of Surgery, Hepato-Pancreato-Biliary Surgery, St. Elizabeth's Medical Center, Boston University School of Medicine, Boston, MA, USA. eavega@bu.edu.