1. Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
2. Dermatrials Research Inc. & Venderm Innovations in Psoriasis, Hamilton, ON, Canada
3. Department of Medicine, McMaster University, Hamilton, ON, Canada
4. Instituto de Ciências Biomédicas Abel Salazar, University of Porto, Porto, Portugal
5. Department of Dermatology, Centro Hospitalar de Santo António, Porto, Portugal