1. Department of Internal Medicine, OSF Saint Francis Medical Center, Peoria, IL, USA
2. Department of Internal Medicine, University of Illinois College of Medicine, OSF Saint Francis Medical Center, Peoria, IL, USA
3. Department of Internal Medicine, University of Illinois College of Medicine, Peoria, IL, USA
4. Department of Cardiology, Southern Illinois University, Springfield, IL, USA
5. Department of Cardiology, University of Illinois College of Medicine, Peoria, IL, USA