1. From the School of Medicine (A.K.B.) and Division of Cardiology (G.V.), University of California Irvine, Irvine CA, and the Long Beach Memorial Heart and Vascular Institute, Long Beach, CA (G.P., M.J.B., G.V.). Dr Vorobiof's current affiliation is the Department of Medicine, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA.