1 Weill Cornell Medical College, New York, New York.
2 Dermatology Department, University of Connecticut School of Medicine, Farmington, Connecticut; Department of Dermatology, University of Flordia College of Medicine, Gainesville, Flordia. Electronic address: grant@uchc.edu.
3 Division of Dermatology, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.