1 Liver Unit, Hospital Clínic de Barcelona. Barcelona, Spain; Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS). Barcelona, Spain; Centro de Investigación En Red de Enfermedades Hepáticas Y Digestivas (Ciberehd), Barcelona, Spain. Electronic address: juanola@clinic.cat.
2 Liver Unit, Hospital Clínic de Barcelona. Barcelona, Spain.
3 Department of Pathology, Hospital Clínic de Barcelona, Spain.
4 Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS). Barcelona, Spain; Centro de Investigación En Red de Enfermedades Hepáticas Y Digestivas (Ciberehd), Barcelona, Spain; Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain; Department of Pathology, Hospital Clínic de Barcelona, Spain.