1. Department of cardiology, Staten Island University Hospital, New York, NY, USA
2. Department of cardiology, University of Miami Miller School of Medicine, Miami, FL, USA
3. Department of Medicine, Creighton University School of Medicine, Omaha, NE, USA
4. Department of Cardiology, Mount Sinai Hospital, Manhattan, NY
5. Department of Cardiology, Mt. Sinai St. Luke’s Roosevelt Hospital Center, New York, NY, USA
6. Department of Medicine, Michigan State University, Lansing, MI, USA
7. St. John hospital and Medical Center, Cardiology, Detroit, MI, USA
8. Department of Medicine, Muhlenberg College, Allentown, PA, USA
9. Department of medicine, Banner baywood medical center, Phoenix, AZ, USA