[1] Univ Navarra, Dept Surg, Univ Clin, E-31080 Pamplona, Spain
[2] Univ Navarra, Dept Radiol, Univ Clin, E-31080 Pamplona, Spain
[3] Univ Navarra, Dept Anesthesiol, Univ Clin, E-31080 Pamplona, Spain
[4] Univ Navarra, Dept Internal Med, Univ Clin, Liver Unit, E-31080 Pamplona, Spain
[5] Inst Salud Carlos III, Ctr Invest & Biomed Red Enfermedades Hepat & Dige, Madrid, Spain