1. Center for Dermatoepidemiology, Veterans Affairs (VA) Medical Center, Providence, Rhode Island2Department of Dermatology, Brown University, Providence, Rhode Island
2. Dermatology, Bay Pines VA Healthcare System, Bay Pines, Florida4Department of Internal Medicine (Dermatology), NOVA Southeastern University College of Osteopathic Medicine, Davie, Florida
3. Dermatology, Edward Hines Jr VA Hospital, Hines, Illinois
4. Dermatology, VA Palo Alto Health Care System, Palo Alto, California7Department of Dermatology, Stanford University Medical Center, Palo Alto, California
5. Dermatology, Atlanta VA Medical Center, Atlanta, Georgia9Department of Dermatology, Emory University, Atlanta, Georgia
6. Dermatology, VA San Diego Healthcare System, San Diego, California
7. Dermatology, Minneapolis VA Health Care System, Minneapolis, Minnesota12Department of Dermatology, University of Minnesota, Minneapolis, Minnesota
8. Dermatology, Tennessee Valley Healthcare System, Nashville, Tennessee14Division of Dermatology, Vanderbilt University, Nashville, Tennessee
9. Dermatology, VA Medical Center, Denver, Colorado
10. Dermatology, Durham VA Medical Center, Durham, North Carolina17Department of Dermatology, Duke University, Durham, North Carolina
11. Dermatology, Boston VA Medical Center, Boston, Massachusetts
12. Dermatology, Philadelphia VA Medical Center, Philadelphia, Pennsylvania20Department of Dermatology, University of Pennsylvania, Philadelphia, Pennsylvania
13. Dermatology, Miami VA Hospital, Miami, Florida22Department of Dermatology and Cutaneous Surgery, University of Miami, Miller School of Medicine, Miami
14. VA Cooperative Studies Coordinating Center, Boston, Massachusetts
15. Center for Dermatoepidemiology, Veterans Affairs (VA) Medical Center, Providence, Rhode Island2Department of Dermatology, Brown University, Providence, Rhode Island24Department of Dermatology, Rhode Island Hospital, Providence25Department of Epidemiology,