Affiliation: | a Department of Pediatric Dermatology, Medical College of Wisconsin, Milwaukee, WI b Departments of Pediatrics and Dermatology Northwestern University Feinberg School of Medicine, Chicago, IL c Departments of Dermatology and Pediatrics, Columbia University, New York, NY d Departments of Pediatrics and Oncology, University of Cincinnati and Cincinnati Children’s Hospital Medical Center, Cincinnati, OH e Department of Dermatology, L’Hospital de la Santa Creu I Sant Pau, Barcelona, Spain f Department of Dermatology, Indiana University, Bloomington, IN g Section of Dermatology, Children’s Mercy Hospitals and Clinics, Kansas City, MO h Department of Dermatology, Hospital St. Justine, Montreal, Quebec, Canada i Departments of Dermatology and Pediatrics, Baylor College of Medicine, Houston, TX j Departments of Dermatology and Pediatrics, University of California San Francisco, San Francisco CA |