1. From the Department of Radiology (A.J.), Johns Hopkins University, Baltimore, MD; Department of Biostatistics (R.L.M.), University of Washington, Seattle, WA; Department of Radiology (J.F.P.), Tufts-New England Medical Center, Boston, MA; Departments of Medicine and Epidemiology (S.S.), Schools of Medicine and Public Health, Columbia University, New York, NY; Division of Public Health Sciences (G.L.B.), Wake Forest University School of Medicine, Winston-Salem, NC; Division of Cardiovascular Sciences...