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	1.	A roadside survey of alcohol and drug use among drivers in British Columbia. [electronic resource] by Beirness, Douglas J Beasley, Erin E Producer: 20100708 In: Traffic injury prevention vol. 11 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	An evaluation of immediate roadside prohibitions for drinking drivers in British Columbia: findings from roadside surveys. [electronic resource] by Beirness, Douglas J Beasley, Erin E Producer: 20140307 In: Traffic injury prevention vol. 15 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	Toward a more parsimonious approach to drug recognition expert evaluations. [electronic resource] by Porath-Waller, Amy J Beirness, Douglas J Beasley, Erin E Producer: 20091215 In: Traffic injury prevention vol. 10 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)

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