Clinical Oncology, Instituto do Cancer do Estado de São Paulo, University of São Paulo, Av. Dr. Arnaldo, 251-Cerqueira Cesar, São Paulo, São Paulo CEP 01246-000, Brazil. Barcelona Clinic Liver Cancer (BCLC) Group, Liver Unit, Hospital Clinic Barcelona, IDIBAPS, Villarroel 170, Barcelona 08036, Spain; University of Barcelona, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain. Barcelona Clinic Liver Cancer (BCLC) Group, Liver Unit, Hospital Clinic Barcelona, IDIBAPS, Villarroel 170, Barcelona 08036, Spain; University of Barcelona, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain. Electronic address: jbruix@clinic.cat.