1. Department of Medicine, Division of Cardiovascular Medicine, Boston University School of Medicine, Boston, MA, USA
2. Department of Medicine, Division of Internal Medicine, Boston University School of Medicine, Boston, MA, USA
3. Department of Medicine, Division of Internal Medicine, Monte Fiore Medical Center, Bronx, NY, USA
4. Centro de Diagnóstico Medicina Avanzada y Telemedicina, Santo Domingo, Dominican Republic
5. Department of Medicine, Division of Cardiovascular Medicine, Temple University Hospital, Philadelphia, PA, USA