1 Boston University School of Medicine, Boston, Massachusetts; Department of Dermatology, Brigham and Women's Hospital, Boston, Massachusetts.
2 Harvard T.H. Chan School of Public Health, Boston, Massachusetts.
3 Department of Dermatology, Brigham and Women's Hospital, Boston, Massachusetts; Department of Dermatology, VA Integrated Service Network (VISN-1), Jamaica Plain, Massachusetts. Electronic address: rhartman@bwh.harvard.edu.