1. The Wright Center for Graduate Medical Education Scranton PA USA
2. Department of Internal Medicine Paul L Foster School of MedicineTexas Tech University El Paso TX USA
3. Department of Medicine Bassett Medical Center Cooperstown NY USA
4. Department of Gastroenterology and Hepatology University of Arkansas for Medical Sciences Little Rock AR USA
5. Department of Internal Medicine The University of Toledo Toledo OH USA
6. Division of Gastroenterology Moses Taylor Hospital and Reginal Hospital of Scranton Scranton PA USA