1. Stanford University School of Medicine, CA (J.Z.).
2. Department of Health Policy, Stanford University School of Medicine, CA (R.L.T.).
3. Veteran’s Affairs Palo Alto Healthcare System, CA (R.L.T., P.A.H., A.T.S.).
4. Division of Cardiovascular Medicine and the Cardiovascular Institute, Department of Medicine, Stanford University, CA (P.A.H., A.T.S.).