1. Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia (G.P.H.). Scientific Studies & Projects, Symphony Health, Conshohocken, PA (G.P.H., A.F.). Center for Genomic Medicine and Cardiovascular Research Center, Massachusetts General Hospital, Boston (P.N.). Program in Medical and Population Genetics, Broad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, MA (P.N.). Richard A. and Susan F. Smith Center for Outcomes Research in Cardiology,...