1. Department of Population and Quantitative Health Sciences, University of Massachusetts Medical School, Worcester, MA, USA
2. University of Minnesota School of Public Health, Division of Epidemiology and Community Health, Minneapolis, MN, USA
3. Department of Cardiovascular Medicine, Veronique L. Roger, Mayo Clinic, Division of Circulatory Failure, Rochester, MN, USA
4. Department of Health, Behavior, and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA