Jaime Bosch1, Tilman Sauerbruch2. 1. Liver Unit, Hospital Clínic-IDIBAPS, University of Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Spain. Electronic address: jbosch@clinic.ub.es. 2. Department of Internal Medicine I, University of Bonn, Germany.