1. US Department of Health & Human Services, Washington, DC
2. VA Boston Healthcare System, Jamaica Plain, Massachusetts
3. Department of Health Policy, Vanderbilt University Medical Center, Nashville, Tennessee
4. Department of Health, Law, Policy and Management, Boston University School of Public Health, Boston, Massachusetts
5. VA Tennessee Valley Health Care System, GRECC, South Nashville, Tennessee
6. Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
7. UMass Chan Medical School, Worcester, Massachusetts
8. VA Central Western Massachusetts Healthcare System, Leeds