1. Southern Arizona VA Health Care System, Tucson, Arizona, USA.
2. Comprehensive Access & Delivery Research & Evaluation (CADRE), Iowa City VA Health Care System, Iowa City, Iowa, USA.
3. Sinclair School of Nursing, University of Missouri, Columbia Missouri, USA.
4. Center for the Study of Healthcare Innovation, Implementation and Policy (CSHIIP), VA Greater Los Angeles Healthcare System, Los Angeles, California, USA.
5. VA/UCLA National Clinician Scholar, Los Angeles, California, USA.
6. Office of Research Patient Care Services Stanford Healthcare, Stanford, California, USA.
7. VA Informatics and Computing Infrastructure (VINCI), VA Salt Lake City Health Care System, Salt Lake City, Utah, USA.
8. Division of Epidemiology, Department of Internal Medicine, University of Utah, Salt Lake City, Utah, USA.
9. Department of Biostatistics, University of California Los Angeles (UCLA) Fielding School of Public Health Los Angeles, California, USA.
10. Geriatric Research, Education and Clinical Center (GRECC), VA Greater Los Angeles Healthcare System, Los Angeles, California, USA.
11. Department of Medicine, UCLA School of Medicine, Los Angeles, California, USA.