1. Division of Cardiology, Department of Medicine; Loyola University Medical Center, Stritch School of Medicine; Maywood Illinois
2. Heart and Vascular Institute, Department of Medicine; Tulane University Medical Center; New Orleans Louisiana
3. Frederik Meijer Heart and Vascular Institute, Spectrum Health Grand Rapids; Michigan
4. Department of Medicine; University of Illinois-Chicago Medical Center; Illinois
5. North Central Cardiovascular Specialists; Elkhart Indiana