1. Tumour Tissue Repository, Trev and Joyce Deeley Research Centre, BC Cancer Agency, Victoria, British Columbia, Canada.
2. Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Montreal, Canada; Institut du cancer de Montréal, Montreal, Canada; and Department of Medicine, Université de Montréal, Montreal, Canada.
3. Department of Pathology, University Health Network, and University of Toronto, Toronto, Ontario, Canada.
4. Department of Pathology and Laboratory Medicine, BC Cancer Agency, Victoria, British Columbia, Canada.