1. Department of Biochemistry, University of Toronto; Toronto Ontario Canada
2. Unit for Virus Host-Cell Interactions, Université Joseph Fourier/European Molecular Biology Laboratory Grenoble Outstation/Centre National de la Recherche Scientifique; Grenoble France
3. Department of Medical Biophysics, University of Toronto; Toronto Ontario Canada
4. Department of Molecular Genetics, University of Toronto; Toronto Ontario Canada
5. Division of Cancer Genomics and Proteomics, Ontario Cancer Institute/Princess Margaret Hospital, Campbell Family Institute for Cancer Research; Toronto Ontario Canada