1. Department of Internal Medicine Carle Foundation Hospital Urbana Illinois USA
2. Department of Cardiology, Lehigh Valley Heart Institute Lehigh Valley Health Network Allentown Pennsylvania USA
3. Department of Cardiology Westchester Medical Center and New York Medical College Valhalla New York USA
4. Department of Cardiology, Heart and Vascular Institute Carle Foundation Hospital Urbana Illinois USA
5. Department of Cardiology Kansas City Heart Rhythm Institute and Research Foundation Overland Park Kansas USA