1 Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.
2 Division of Dermatology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada; Department of Dermatology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Department of Dermatology, Women's College Hospital, Toronto, Ontario, Canada; Probity Medical Research, Waterloo, Ontario, Canada.
3 Division of Dermatology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada; Department of Dermatology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada. Electronic address: asfandyar.mufti@gmail.com.