Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia, Canada.|Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia, Canada.|Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia, Canada.|Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia, Canada.|Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia, Canada.|Michael Smith Laboratories, University of British Columbia, Vancouver, British Columbia, Canada.