1. Department of Gastroenterology; Metrohealth Medical Center; Cleveland Ohio USA
2. Department of Gastroenterology; Virginia Commonwealth University; Richmond Virginia USA
3. Quantitative Health Services; Metrohealth Medical Center; Cleveland Ohio USA
4. Departments of Family Practice; Cleveland Clinic at the Cleveland Clinic Lerner College of Medicine at Case Western University; Richmond Virginia USA
5. Gastroenterology; Cleveland Clinic at the Cleveland Clinic Lerner College of Medicine at Case Western University; Cleveland Ohio USA
6. Pathology; Metrohealth Medical Center; Richmond Virginia USA
7. Pathology, Metrohealth Medical Center; Cleveland Clinic at the Cleveland Clinic Lerner College of Medicine at Case Western University; Cleveland Ohio USA
8. Pediatric Gastroenterology; Cleveland Clinic at the Cleveland Clinic Lerner College of Medicine at Case Western University; Richmond Virginia USA