1 Department of Dermatology, University of Maryland School of Medicine, Baltimore, Maryland; Department of Dermatology, Maryland Itch Center, University of Maryland School of Medicine, Baltimore, Maryland; Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, Maryland.
2 Department of Dermatology, University of Maryland School of Medicine, Baltimore, Maryland.
3 Department of Dermatology, University of Maryland School of Medicine, Baltimore, Maryland; Department of Dermatology, Maryland Itch Center, University of Maryland School of Medicine, Baltimore, Maryland. Electronic address: [email protected].