1 Harvard Medical School, Boston, Massachusetts; Department of Dermatology, Brigham and Women's Hospital, Boston, Massachusetts.
2 John Sealy School of Medicine, University of Texas Medical Branch, Galveston, Texas; Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts.
3 John Sealy School of Medicine, University of Texas Medical Branch, Galveston, Texas.
4 Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas.
5 Department of Dermatology, University of Texas Medical Branch, Galveston, Texas.
6 Harvard Medical School, Boston, Massachusetts; Department of Dermatology, Brigham and Women's Hospital, Boston, Massachusetts. Electronic address: [email protected].