1. Division of Cardiology, Department of Medicine, Veterans Affairs Greater Los Angeles Healthcare System, CA (J.K.H., R.E.).
2. Division of Cardiology, Department of Medicine, David Geffen School of Medicine at the University of California Los Angeles (J.K.H., K.E.W., R.E.).
3. Veterans Affairs Health Services Research & Development (HSR&D) Center for the Study of Healthcare Innovation, Implementation and Policy, Veterans Affairs Greater Los Angeles Healthcare System, CA (E.M.Y.).
4. Department of Health Policy and Management, University of California Los Angeles Fielding School of Public Health (E.M.Y.).