1 Palo Alto Veterans Institute for Research, Palo Alto, California, USA; Veterans Affairs Palo Alto Health Care System, Palo Alto, California, USA. Electronic address: bridget.o'connell@va.gov.
2 Veterans Affairs Palo Alto Health Care System, Palo Alto, California, USA.
3 Veterans Affairs Palo Alto Health Care System, Palo Alto, California, USA; Division of Cardiovascular Medicine and the Cardiovascular Institute, Department of Medicine, Stanford University, Stanford, California, USA.
4 Department of Population Health Sciences, Duke University School of Medicine, Durham, North Carolina, USA; Center for Health Services Research in Primary Care, Durham Veterans Affairs Medical Center, Durham, North Carolina, USA.
5 Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan, USA.
6 Center for Care Delivery and Outcomes Research, Minneapolis VA Health Care System, Minneapolis, Minnesota, USA; University of Minnesota, Minneapolis, Minnesota, USA.
7 Rocky Mountain Regional VA Medical Center, Aurora, Colorado, USA; University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.
8 Pauley Heart Center, Division of Cardiology, Department of Internal Medicine, Virginia Commonwealth University, Richmond, Virginia, USA; Department of Pharmacotherapy and Outcome Science, School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia, USA.
9 Veterans Affairs Palo Alto Health Care System, Palo Alto, California, USA; Division of Cardiovascular Medicine and the Cardiovascular Institute, Department of Medicine, Stanford University, Stanford, California, USA; Center for Digital Health, Department of Medicine, Stanford University, Stanford, California, USA.