1. National Personal Protective Technology Laboratory, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Pittsburgh, Pennsylvania
2. Veterans Affairs New York Harbor Healthcare System, New York
3. New York University School of Medicine, New York
4. Veterans Affairs Eastern Colorado Healthcare System, Denver
5. University of Colorado School of Medicine, Aurora
6. University of Massachusetts, Amherst
7. University of Florida, Gainesville
8. Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
9. Johns Hopkins School of Medicine, Baltimore, Maryland
10. Weill Cornell Medicine, New York, New York
11. Veterans Affairs Medical Center, Washington, DC
12. George Washington University School of Medical and Health Sciences, Washington, DC
13. Veterans Affairs St Louis Healthcare System, St Louis, Missouri
14. St Louis University School of Medicine, St Louis, Missouri
15. Children’s Hospital Colorado, Aurora
16. Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas
17. Baylor College of Medicine, Houston, Texas
18. Denver Health Medical Center, Denver, Colorado
19. University of Texas Southwestern Medical Center, Dallas