1. Division of Internal Medicine University of Missouri Kansas City Kansas City MO USA
2. Division of Internal Medicine Henry Ford Allegiance Health Detroit MI USA
3. Harvard T.H. Chan School of Public Health Harvard University Boston MA USA
4. Division of Internal Medicine John H Stroger Jr Hospital of Cook County Chicago IL USA
5. Division of Cardiovascular Disease University of Alexandria School of medicine Alexandria Egypt
6. Divison of Internal Medicine University of Iowa Hospitals and Clinics Iowa City IA USA
7. Division of Cardiovascular Disease University of Alabama at Birmingham Birmingham AL USA