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	1.	Vomiting and gastric motility in infants with cow's milk allergy. [electronic resource] by Steffen, R M Producer: 20011227 In: Clinical pediatrics vol. 40 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	International Conference on Nuclear Physics in Glasgow. [electronic resource] by Steffen, R M Producer: 20100702 In: Science (New York, N.Y.) vol. 120 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	Treatment of recurrent abdominal pain: components analysis of four treatment protocols. [electronic resource] by Banez, G A Steffen, R M Producer: 20011227 In: Clinical pediatrics vol. 40 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	4.	Empirically supported treatments in pediatric psychology: constipation and encopresis. [electronic resource] by Banez, G A Steffen, R M Producer: 20011227 In: Clinical pediatrics vol. 40 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	5.	The endoscopic appearance of eosinophilic gastroenteritis in infancy. [electronic resource] by Kay, M H Wyllie, R Steffen, R M Producer: 19950908 In: The American journal of gastroenterology vol. 90 Availability: No items available. Save to lists Add to cart (remove)
	6.	Use of ursodeoxycholic acid in the treatment of arteriohepatic dysplasia. [electronic resource] by Kay, M H Wyllie, R Steffen, R M Producer: 19970314 In: Clinical pediatrics vol. 35 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	7.	Antioxidants in hereditary pancreatitis. [electronic resource] by Mathew, P Wyllie, R Van Lente, F Steffen, R M Kay, M H Producer: 19960916 In: The American journal of gastroenterology vol. 91 Availability: No items available. Save to lists Add to cart (remove)
	8.	Colonoscopy in the pediatric patient. [electronic resource] by Steffen, R M Wyllie, R Sivak, M V Michener, W M Caulfield, M E Producer: 19891107 In: The Journal of pediatrics vol. 115 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	9.	The spectrum of eosinophilic gastroenteritis. Report of six pediatric cases and review of the literature. [electronic resource] by Steffen, R M Wyllie, R Petras, R E Caulfield, M E Michener, W M Firor, H V Norris, D G Producer: 19910930 In: Clinical pediatrics vol. 30 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)