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	1.	Effects of combining methylphenidate and a classroom token system in modifying hyperactive behavior. [electronic resource] by Christensen, D E Producer: 19760129 In: American journal of mental deficiency vol. 80 Availability: No items available. Save to lists Add to cart (remove)
	2.	Assessment and application of patient satisfaction variables in marketing a psychiatric practice. [electronic resource] by Christensen, D E Giese, T D Producer: 19881121 In: Journal of health care marketing vol. 8 Availability: No items available. Save to lists Add to cart (remove)
	3.	Reduction of hyperactive behavior by conditioning procedures alone and combined with methylphenidate (Ritalin). [electronic resource] by Christensen, D E Sprague, R L Producer: 19731101 In: Behaviour research and therapy vol. 11 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	4.	Inflight cabin ozone aboard long duration C-5 airlift missions: a historical issue revisited. [electronic resource] by Hetrick, S M Gould, W D Christensen, D E Producer: 20000531 In: Aviation, space, and environmental medicine vol. 71 Availability: No items available. Save to lists Add to cart (remove)
	5.	Abomasal emptying defect of sheep may be an acquired form of dysautonomia. [electronic resource] by Pruden, S J McAllister, M M Schultheiss, P C O'Toole, D Christensen, D E Producer: 20040525 In: Veterinary pathology vol. 41 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)