Hospital Universitario Fundación Alcorcón

Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing Key Laboratory of Translational Medicine on Liver Cirrhosis, National Clinical Research Center for Digestive Diseases, Beijing, China;

UCL, London

Massachusetts General Hospital and Harvard Medical School

The University of Iowa Hospitals and Clinics

Children's Hospital Los Angeles

Mayo Clinic

Indiana University School of Medicine

Indiana University

Flinders University