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	1.	Rate of illegal tobacco sales to minors varies by sign type in California. [electronic resource] by Cowling, D W Robins, D M Producer: 20001201 In: American journal of public health vol. 90 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Comparison of methods for estimation of individual-level prevalence based on pooled samples. [electronic resource] by Cowling, D W Gardner, I A Johnson, W O Producer: 19990624 In: Preventive veterinary medicine vol. 39 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	Changes of knowledge, attitudes, beliefs, and preference of bar owner and staff in response to a smoke-free bar law. [electronic resource] by Tang, H Cowling, D W Stevens, C M Lloyd, J C Producer: 20041207 In: Tobacco control vol. 13 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	4.	Improving the self reporting of tobacco use: results of a factorial experiment. [electronic resource] by Cowling, D W Johnson, T P Holbrook, B C Warnecke, R B Tang, H Producer: 20040319 In: Tobacco control vol. 12 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)

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