1. Center of Innovation for Complex Chronic Healthcare (CINCCH), Edward Hines VA Hospital, Hines, Illinois, USA
2. Parkinson School of Health Sciences and Public Health, Loyola University Chicago, Maywood, Illinois, USA
3. Charlie Norwood Veterans Affairs Medical Center, Augusta, Georgia, USA
4. Department of Veterans Affairs-Puget Sound Health Care System, Seattle, Washington, USA
5. Department of Rehabilitation Medicine, University of Washington, Seattle, Washington, USA
6. Department of Medicine, Division of Rheumatology, J. Harold Harrison, MD, Distinguished Chair in Rheumatology, Medical College of Georgia at Augusta University, Augusta, Georgia, USA