1. Division of Dermatology, Faculty of Medicine, McGill University, Montréal, Québec, Canada
2. Faculty of Medicine, McGill University, Montréal, Québec, Canada
3. Division of Allergy and Immunology, Faculty of Medicine, McGill University, Montréal, Québec, Canada
4. Division of Dermatology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
5. Department of Dermatology and Skin Science, University of British Columbia, Vancouver, BC, Canada
6. Department of Dermatology, Brigham and Women’s Hospital/Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA