1. Veterans Affairs (VA) Office of Rural Health, Veterans Rural Health Resource Center‐Iowa City, Iowa City VA Health Care System Iowa City Iowa USA
2. VA Health Services Research & Development Service, Center for Access and Delivery Research and Evaluation Iowa City VA Health Care System Iowa City Iowa USA
3. Department of Internal Medicine Carver College of Medicine, University of Iowa Iowa City Iowa USA
4. Department of Medicine Salt Lake City VA Health Care System Salt Lake City Utah USA
5. Division of Rheumatology University of Utah School of Medicine Salt Lake City Utah USA