1. University of South Florida, Morsani College of Medicine, Department of Internal Medicine, Tampa, Florida, USA
2. University of South Florida, Morsani College of Medicine, Department of Internal Medicine, Division of Digestive Diseases and Nutrition, Tampa, Florida, USA
3. University of South Florida, Morsani College of Medicine, Department of Internal Medicine, Division of Evidence Based Medicine, Tampa, Florida, USA
4. University of South Florida, Morsani College of Medicine, Department of Internal Medicine, Division of Digestive Diseases and Nutrition, James A. Haley Veterans Affairs Hospital, Tampa, Florida, USA