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	1.	Drug abuse prevalence in western Canada and the North West Territories: a survey of students in grades 6-12. [electronic resource] by Hindmarsh, K W Opheim, E E Producer: 19901204 In: The International journal of the addictions vol. 25 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Alcohol and drug use by students from western Canada in grades 6 through 12 (1992): have there been any changes over the past five years? [electronic resource] by Hindmarsh, K W Porter-Serviss, S Opheim, E E Producer: 19940906 In: The International journal of the addictions vol. 29 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	Perceptions and attitudes with respect to drug use among grades 4 to 6 students: 1992. [electronic resource] by Porter-Serviss, S Opheim, E E Hindmarsh, K W Producer: 19940503 In: The International journal of the addictions vol. 29 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)

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