1. Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia, Canada
2. Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
3. Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, Alberta, Canada
4. Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada
5. Department of Chemical and Petroleum Engineering and Centre for Bioengineering Research and Education, University of Calgary, Calgary, Alberta, Canada