1. Department of Infectious Diseases; Vall d'Hebron Hospital; University “Autonoma” of Barcelona; Barcelona; Spain
2. Microbiology; Faculty of Biology; University of Barcelona; Barcelona; Spain
3. Department of Biochemistry; Vall d'Hebron Hospital; University “Autonoma” of Barcelona; Barcelona; Spain
4. Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd); Biomedical Research Network Center; Hepatic and Gastrointestinal Diseases; Carlos III Institut; Spanish Ministry of Health; Barcelona; Spain