1 Departments of Surgical Oncology, and Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. Electronic address: jvauthey@mdanderson.org.
2 Departments of Surgical Oncology, and Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
3 Department of Hepato-Pancreato-Biliary Surgery and Transplantation, Hôpital Beaujon, Université Paris VII, Clichy Cedex, France. Electronic address: olivier.soubrane@aphp.fr.