1. Department of Internal Medicine; John H. Stroger, Jr. Hospital of Cook County; Chicago IL USA
2. Division of Gastroenterology and Hepatology; Department of Internal Medicine; John H. Stroger, Jr. Hospital of Cook County; Chicago IL USA
3. Department of Internal Medicine; James H. Quillen College of Medicine; East Tennessee State University; Johnson City TN USA
4. Department of Internal Medicine; Forest Hills Hospital; Forest Hills NY USA
5. Department of Pharmacy; John H. Stroger, Jr. Hospital of Cook County; Chicago IL USA
6. Department of Internal Medicine; Mercy Catholic Medical Center; Darby PA USA