1. Division of Epidemiology and Community Health, University of Minnesota School of Public Health, Minneapolis, Minnesota, USA.
2. Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Health System, Los Angeles, California, USA.
3. Divisions of Biostatistics and University of Minnesota School of Public Health, Minneapolis, Minnesota, USA.
4. Divisions of Health Policy and Management, University of Minnesota School of Public Health, Minneapolis, Minnesota, USA.