1. St. George’s University School of Medicine, St. George’s, Grenada
2. Department of Surgery, Elmhurst Hospital Center, Icahn School of Medicine at Mount Sinai, New York, NY 11373, USA
3. Harvard-Thorndike Electrophysiology Institute, Cardiovascular Division, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA