1. Division of Cardiology, Department of Medicine, Clinical Cardiovascular Research Center, University of Rochester Medical Center, 265 Crittenden Blvd CU 420653, NY 14642, USA
2. Division of Cardiology, Miller School of Medicine, University of Miami, 1321 NW 14th St #510, Miami, FL 33125, USA
3. Division of Cardiology, Duke Medicine Circle Clinic 2F/2G, Durham, NC 27710, USA
4. Division of Cardiology, UPMC Heart and Vascular Institute 1350 Locust Street, Suite 100 Pittsburgh, PA 15219, USA
5. Division of Cardiology, Good Samaritan Hospital, 1245 Wilshire Blvd, Ste 703, Los Angeles, CA 90017, USA
6. Cardiac Rhythm Management, Boston Scientific Corp., 4100 Hamline Ave N, St Paul, MN 55101, USA