1 Department of Medicine (Megan Sander, Burbidge), Section of Dermatology, and Cumming School of Medicine (Michael Sander), University of Calgary, Calgary, Alta.; Division of Dermatology (Beecker), Department of Medicine, The Ottawa Hospital; Faculty of Medicine (Beecker), University of Ottawa and The Ottawa Hospital Research institute (Beecker), Ottawa, Ont. msander@ucalgary.ca.
2 Department of Medicine (Megan Sander, Burbidge), Section of Dermatology, and Cumming School of Medicine (Michael Sander), University of Calgary, Calgary, Alta.; Division of Dermatology (Beecker), Department of Medicine, The Ottawa Hospital; Faculty of Medicine (Beecker), University of Ottawa and The Ottawa Hospital Research institute (Beecker), Ottawa, Ont.