1. Section of Digestive Diseases Yale School of Medicine New Haven Connecticut USA
2. Department of Biostatistics School of Public Health, Yale University New Haven Connecticut USA
3. Conatus Pharmaceuticals at the time of study conduct San Diego California USA
4. Liver Unit, Department of Internal Medicine Hospital Universitari Vall d'Hebron, Vall d'Hebron Institut de Recerca (VHIR), Vall d'Hebron Barcelona Hospital Campus, Universitat Autònoma de Barcelona Barcelona Spain
5. Centro de Investigacion Biomédica en Red de Enfermedades Hepáticas y Digestivas Instituto de Salud Carlos III Madrid Spain
6. VA‐CT Healthcare System New Haven Connecticut USA