aQueen's University School of Medicine, Kingston

bDivision of Dermatology, Department of Paediatrics, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada

Correspondence to Irene Lara-Corrales, MD, MSc, Associate Professor of Pediatrics, University of Toronto, Staff Physician Pediatric Dermatology, Pediatric Dermatology Fellowship Director, Hospital for Sick Children, 555 University Avenue, Toronto, ON M5G 1X8, Canada. E-mail: [email protected]