1. Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, GA, USA
2. Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA
3. Cardiovascular Division, Department of Medicine, University of Minnesota Medical School, Minneapolis, MN, USA
4. Epidemiological Cardiology Research Center, Section on Cardiovascular Medicine, Department of Medicine, Wake Forest University School of Medicine, Winston Salem, NC, USA
5. Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Emory University School of Medicine, Atlanta, GA, USA