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 |  |  |  |  |  |  |  |  |  | 47 |  | Per cent of 18- and 19-year-olds that report having used cannabis at least once in the past year (2004 survey). |  | | (more cool numbers) |  |  |  | Question |  | Who does the testing? |  |  | Answer |  | Testing is carried out by certified doping control officers from the Canadian Centre for Ethics in Sport or World Anti-Doping Agency. |  | | (more FAQs) |  |  | |
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