1 Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA.
2 Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA.
3 Mazankowski Alberta Heart Institute and the Department of Medicine, University of Alberta, Edmonton, Alberta, Canada.
4 Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA.
5 Emory Clinical Cardiovascular Research Institute, Division of Cardiology, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA. Electronic address: aquyyum@emory.edu.