1. American Cancer Society: Cancer Facts and Figures. American Cancer Society, Atlanta (2012) (available online. last accessed December 12, 2012)
2. Canadian Cancer Statistics, produced by Canadian Cancer Society, Statistics Canada, Provincial/Territorial Cancer Registries, Public Health Agency of Canada (2012) (available online. last accessed December 12, 2012)
3. National Cancer Institute (NCI) booklet (NIH Publication No. 09-1558) (available online. posted April 29, 2009)
4. Azimi, E., Doswell, J., Kazanzides, P.: Augmented reality goggles with an integrated tracking system for navigation in neurosurgery (2012)
5. Lecture Notes in Computer Science;S. Drouin,2012