1. Center for Health Services Research in Primary Care, Durham Veterans Affairs Health Care System Durham North Carolina, USA
2. Department of Population Health Sciences Duke University Durham North Carolina, USA
3. Division of General Internal Medicine, Department of Medicine Duke University Durham North Carolina, USA
4. Kaiser Permanente Washington Health Research Institute Seattle Washington, USA
5. Department of Medicine University of Washington Seattle Washington, USA
6. Center for Health Services Research in Older Adults, Puget Sound Health Care System Seattle Washington, USA
7. Department of Health Services, School of Public Health University of Washington Seattle Washington, USA
8. Department of Biostatistics and Bioinformatics Duke University Durham North Carolina, USA
9. William S. Middleton Memorial Veterans Hospital Madison Wisconsin, USA
10. Department of Surgery University of Wisconsin‐Madison Madison Wisconsin, USA
11. Department of Psychiatry and Behavioral Science University of North Dakota Fargo North Dakota, USA