1. Hepatic Hemodynamic Laboratory, Liver Unit, Institut d’Investigacions Biomediques August Pi i Sunyer (IDIBAPS) and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (Ciberehd)
2. Abdominal Imaging Section, Centre Diagnostic per la Imatge (CDIC), Hospital Clinic i Provincial, Barcelona, Spain
3. Division of Internal Medicine, Department of Digestive Disease and Internal Medicine, General and University Hospital S. Orsola-Malpighi, Bologna, Italy