1 Department of Dermatology, Mayo Clinic, Rochester, MN.
2 Department of Dermatology, Mayo Clinic, Rochester, MN; Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN.
3 Department of Dermatology, Mayo Clinic, Rochester, MN; Department of Pediatrics, Mayo Clinic, Rochester, MN. Electronic address: Youssef.Molly@mayo.edu.