| Affiliation: | 1. Wellcome Trust Centre for Stem Cell Research and Department of Biochemistry, University of Cambridge, Tennis Court Road, Cambridge CB2 1QR, UK;2. Arthur and Sonia Labatt Brain Tumor Research Center, Program in Developmental and Stem Cell Biology, The Hospital for Sick Children, University of Toronto, 555 University Avenue, Toronto, Ontario M5G 1X8, Canada;3. Division of Clinical Neurosciences, Western General Hospital, Edinburgh EH4 2XU, UK;4. Department of Applied Molecular Oncology, Ontario Cancer Institute, University Health Network, University of Toronto, 610 University Avenue, Toronto, Ontario M5G 2M9, Canada;5. Division of Neurosurgery, Toronto Western Hospital, University of Toronto, 399 Bathurst Street, Toronto, Ontario M5T 2S8, Canada;6. Department of Pathology and Molecular Medicine, Richardson Building, Stuart Street, Queen''s University, Kingston, Ontario K7L 3N6, Canada |
