1 Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, Maryland; Creighton University School of Medicine, Omaha, Nebraska.
2 Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, Maryland.
3 Division of Dermatology, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, California.
4 Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, Maryland. Electronic address: skwatra1@jhmi.edu.