1. From The Russell H. Morgan Department of Radiology and Radiological Sciences (B.A.W., D.A.B.) and the Department of Pathology (S.L.), The Johns Hopkins University School of Medicine, Baltimore, Md; the Department of Epidemiology (A.R.S.), The Johns Hopkins Bloomberg School of Public Health, Baltimore, Md; the Department of Radiological Sciences (A.S.G.), University of California at Los Angeles, David Geffen School of Medicine, Los Angeles, Calif; the Departments of Medicine and Pathology (M.C.),...