1. Department of Dermatology, St Luc Hospital, Centre Hospitalier Université de Montréal, Montreal, QC, Canada
2. Department of Dermatology, Hotel Dieu Hospital, Centre Hospitalier Université de Montréal, Montreal, QC, Canada
3. Division of Otolaryngology, Head and Neck Surgery, Notre Dame Hospital, Centre Hospitalier Université de Montréal, Montreal, QC, Canada