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