1 Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada.
2 Department of Medicine, Division of Dermatology, Women's College Hospital, Toronto, Ontario, Canada.
3 Faculty of Medicine, Queens University, Kingston, Ontario, Canada.
4 Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.
5 Faculty of Medicine, Laval University, Quebec, Quebec, Canada.
6 Department of General Surgery, Mary Washington Healthcare, Fredericksburg, Virginia, USA.
7 Department of Medicine, Division of Dermatology, Women's College Hospital, Toronto, Ontario, Canada; Department of Medicine, Division of Dermatology, University Health Network, Toronto, Ontario, Canada. Electronic address: david.croitoru@utoronto.ca.