1 Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA. Electronic address: slee228@jhmi.edu.
2 Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA. Electronic address: LAG@jhmi.edu.