1. Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine Research, Indianapolis, Indiana, USA
2. Department of Research, Richard L. Roudebush VA Medical Center, Indianapolis, Indiana, USA
3. Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana, USA
4. UVM Health Network, Burlington, Vermont, USA
5. Department of Anatomical, Histological, Forensic Medicine and Orthopedics Sciences, Sapienza University of Rome, Rome, Italy
6. Department of Nutrition, Texas A&M University, College Station, Texas, USA
7. Texas A&M University School of Medicine, College Station, Texas, USA