1. Yale School of Medicine, New Haven, CT, USA
2. VA Connecticut Healthcare System, West Haven, CT, USA
3. Department of Medicine, Yale School of Medicine, New Haven, CT, USA
4. Yale School of Nursing, West Haven, CT, USA
5. Department of Medicine, Veterans Affairs North Texas Health Care System, Dallas, TX, USA
6. Los Angeles Biomedical Research Institute at Harbor-UCLA, Torrance, CA, USA
7. VA Pittsburgh Healthcare System, Pittsburgh, PA, USA
8. Department of Medicine, Weill Cornell Medical College, New York, NY, USA
9. Department of Medicine, University of Washington School of Medicine, Seattle, WA, USA