1. Department of Internal Medicine, Allegheny Health Network, Pittsburgh, Pennsylvania, USA
2. Division of Gastroenterology and Hepatology, University of Minnesota Medical Center, Minneapolis, Minnesota, USA
3. Division of Gastroenterology and Hepatology, Baylor College of Medicine, Houston, Texas, USA
4. Division of Cardiology, Georgetown University School of Medicine, Washington, DC, USA
5. Division of Cardiology, Allegheny Health Network, Pittsburgh, Pennsylvania, USA
6. Division of Gastroenterology and Hepatology, Allegheny Health Network, Pittsburgh, Pennsylvania, USA