1. Temerty Faculty of Medicine, University of Toronto, ON, Canada
2. Division of Dermatology, Department of Medicine, University of Toronto, ON, Canada
3. Division of Gastroenterology, Department of Medicine, Mount Sinai Hospital, University of Toronto, ON, Canada
4. Section of Dermatology, Department of Pediatrics, The Hospital for Sick Children, Toronto, ON, Canada
5. Division of Dermatology, Department of Medicine, Women’s College Hospital, Toronto, ON, Canada