1. Departments of Epidemiology and Medicine, and Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins University Bloomberg School of Public Health, 2024 E. Monument St.. Room 2-645, Baltimore, MD 21205, USA
2. McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, 733 N. Broadway, Miller Research Building, Room 459, Baltimore, MD 21205, USA
3. Department of Laboratory Medicine and Pathology, University of Minnesota, Room 1-156, Moos Tower, 515 Delaware Street SE, Minneapolis, MN 55455, USA
4. Human Genetics Center, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX, USA
5. Department of Medicine, Division of Cardiology, Cardiovascular Health Research Unit, University of Washington, 1730 Minor Ave, Suite 1360, Seattle, Washington 98101, USA
6. Department of Medicine, Division of Cardiology, Electrophysiology Section, Northwestern University, 676 N. St. Clair, Suite 600, Chicago, Illinois, USA
7. Inova Heart and Vascular Institute, 3300 Gallows Rd, Falls Church, VA 22042, USA
8. Baylor College of Medicine, Human Genome Sequencing Center, One Baylor Plaza, Alkek N1419, MS: BCM226, Houston, TX 77030-3411, USA