1. From the Department of Medicine (M.M.M.), the Department of Preventive Medicine (M.M.M., K.L., Y.L.), the Department of Surgery and the Division of Vascular Surgery (M.K., W.H.P.), and The Department of Radiology (J.C., T.J.C.), Northwestern University's Feinberg School of Medicine, Chicago, IL; the Department of Family and Preventive Medicine, University of California at San Diego (M.H.C.), San Diego, CA; the Department of Health Research and Policy, Stanford University School of Medicine (L.T.);...