1 Stanford Prevention Research Center and Division of Cardiovascular Medicine, Department of Medicine and the Cardiovascular Institute, Stanford University, Stanford, California, USA.
2 Division of Cardiology, Lundquist Institute, Harbor-UCLA Medical Center, Torrance, California, USA.
3 Department of Cardiology, David Grant US Air Force Medical Center, Travis Air Force Base, Fairfield, California, USA.
4 Division of Cardiovascular Medicine, Department of Internal Medicine, University of California-Davis, Davis, California, USA.
5 Right Care Initiative, School of Public Health, University of California-Berkeley, Berkeley, California, USA.
6 Department of Radiology, David Grant US Air Force Medical Center, Travis Air Force Base, Fairfield, California, USA.
7 Cardiovascular Research Institute and Department of Medicine, University of California-San Francisco, San Francisco, California, USA.
8 Medstar Heart and Vascular Institute, Medstar Georgetown University Hospital and Medstar Washington Hospital Center, Washington, District of Columbia, USA.
9 Division of Cardiology and Department of Epidemiology and Biostatistics, University of California-Irvine, Irvine, California, USA.
10 Division of Cardiology, Department of Medicine, Sulpizio Cardiovascular Center, University of California-San Diego, La Jolla, California, USA.