1. From the Department of Diagnostic Radiology & Nuclear Medicine (B.A.W., W.Y.), University of Maryland School of Medicine, Baltimore; Russell H. Morgan Department of Radiology and Radiological Sciences (B.A.W., Y.Q.), Johns Hopkins School of Medicine, Baltimore; Departments of Epidemiology and Medicine and Welch Center for Prevention, Epidemiology, and Clinical Research (E.G.), Johns Hopkins University Bloomberg School of Public Health, Baltimore; CVPath Institute, Inc. (M.E.R., R.V.),...