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	1.	Students and drug abuse, 1974 and 1980. [electronic resource] by Ryser, P E Producer: 19831220 In: The Journal of school health vol. 53 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Sex differences in substance abuse: 1976-1979. [electronic resource] by Ryser, P E Producer: 19830415 In: The International journal of the addictions vol. 18 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	A preliminary assessment of drug abuse treatment in Italy. [electronic resource] by Andreoli, V Ryser, P E Producer: 19810820 In: Addictive diseases vol. 3 Availability: No items available. Save to lists Add to cart (remove)
	4.	Impact of sex on length of time spent in treatment and treatment success. [electronic resource] by Greene, B T Ryser, P E Producer: 19781202 In: The American journal of drug and alcohol abuse vol. 5 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	5.	The effect of education and significant others upon the contraceptive behaviour of married men. [electronic resource] by Ryser, P E Spillane, W H Producer: 19741212 In: Journal of biosocial science vol. 6 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	6.	Racial differences in abortion-seeking. [electronic resource] by Ryser, P E Laufe, L E Berg, R Producer: 19751007 In: Contraception vol. 12 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	7.	Effects of client characteristics on admission activity in United States federally funded drug treatment facilities. [electronic resource] by Greene, B T Ryser, P E Spillane, W H Bardine, A Producer: 19790221 In: The International journal of the addictions vol. 13 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)