1 Internal Medicine, University of Miami, John F. Kennedy Regional Campus, Atlantis, USA.
2 Center for Advanced Therapeutic Endoscopy/Division of Gastroenterology, Hepatology and Nutrition, Allegheny Health Network/Allegheny Center for Digestive Health, Pittsburgh, USA.
3 Gastroenterology, West Palm Beach Veterans Affairs Medical Center, West Palm Beach, USA.
4 Pathology, West Palm Beach Veterans Affairs Medical Center, West Palm Beach, USA.