1 PRecisiOn Medicine Translational Research (PROMoTeR) Center, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA.
2 Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA.
3 Department of Epidemiology, University of Colorado, Anschutz Medical Campus, Aurora, CO john.hokanson@cuanschutz.edu.