Affiliation: | 1. Department of Pediatrics, Washington University School of Medicine, St Louis, Missouri;2. Department of Dermatology, Washington University School of Medicine, St Louis, Missouri;3. Department of Pediatrics, Massachusetts General Hospital, Boston, Massachusetts;4. Department of Cell Biology and Physiology, Washington University School of Medicine, St Louis, Missouri;5. Department of Medical Sciences, Frank Netter School of Medicine, Hamden, Connecticut |