1. From the Department of Radiology, University of Washington, Seattle, Wash (J.M.L., E.V.); Kaiser Permanente Washington Health Research Institute, Seattle, Wash (L.I., D.L.M., K.W., D.S.M.B.); Department of Public Health Sciences, School of Medicine, University of California, Davis School of Medicine, Davis, Calif (D.L.M.); Department of Medicine, Epidemiology and Biostatistics, University of California, San...