1. Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA 70112, USA
2. Department of Evidence Based Medicine and Division of Population Genetics, State Key Laboratory of Cardiovascular Disease, Cardiovascular Institute and Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
3. Department of Biochemistry and Biophysics, University of California, San Francisco, CA 94143, USA
4. Center for American Indian Health Research, University of Oklahoma Health Science Center, Oklahoma City, OK 73104, USA
5. Missouri Breaks Industries Research Inc, Timber Lake, SD 57656, USA
6. Weill Cornell Medical College, New York, NY 10065, USA
7. Medstar Research Institute and Georgetown and Howard Universities Centers for Translational Sciences, Washington, DC 20007, USA