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 Georgetown University School of Medicine, Washington, District of Columbia.
4 Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, Maryland. Electronic address: skwatra1@jhmi.edu.