1. Department of Radiology, Section of Interventional Radiology and Division of Interventional Oncology; Robert H. Lurie Comprehensive Cancer Center, Northwestern University; Chicago IL
2. Gastrointestinal Surgery and Liver Transplantation Unit; National Cancer Institute, Istituto Nazionale Tumori IRCCS; Milan Italy
3. Liver Unit; Clinica Universidad de Navarra, and Centro de Investigacion Biomedica en Red de Enfermedades Hepaticas y Digestivas; Pamplona Spain