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	1.	Parental perceptions of research after completion of placebo-controlled trials in pediatric gastroenterology. [electronic resource] by Perez, Maria E Langseder, Annette Lazar, Eric Youssef, Nader N Producer: 20110303 In: Journal of pediatric gastroenterology and nutrition vol. 51 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Quality of life for children with functional abdominal pain: a comparison study of patients' and parents' perceptions. [electronic resource] by Youssef, Nader N Murphy, Thomas G Langseder, Annette L Rosh, Joel R Producer: 20060207 In: Pediatrics vol. 117 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	Chronic abdominal pain and depressive symptoms: analysis of the national longitudinal study of adolescent health. [electronic resource] by Youssef, Nader N Atienza, Katherine Langseder, Annette L Strauss, Richard S Producer: 20080417 In: Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association vol. 6 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	4.	Chronic childhood constipation is associated with impaired quality of life: a case-controlled study. [electronic resource] by Youssef, Nader N Langseder, Annette L Verga, Barbara J Mones, Richard L Rosh, Joel R Producer: 20051110 In: Journal of pediatric gastroenterology and nutrition vol. 41 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	5.	PEG3350 in the treatment of childhood constipation: a multicenter, double-blinded, placebo-controlled trial. [electronic resource] by Nurko, Samuel Youssef, Nader N Sabri, Mahmoud Langseder, Annette McGowan, John Cleveland, Mark Di Lorenzo, Carlo Producer: 20080813 In: The Journal of pediatrics vol. 153 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	6.	PedsQL™ Gastrointestinal Symptoms Scales and Gastrointestinal Worry Scales in pediatric patients with functional and organic gastrointestinal diseases in comparison to healthy controls. [electronic resource] by Varni, James W Bendo, Cristiane B Denham, Jolanda Shulman, Robert J Self, Mariella M Neigut, Deborah A Nurko, Samuel Patel, Ashish S Franciosi, James P Saps, Miguel Yeckes, Alyson Langseder, Annette Saeed, Shehzad Pohl, John F Producer: 20150618 In: Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation vol. 24 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	7.	PedsQL gastrointestinal symptoms module: feasibility, reliability, and validity. [electronic resource] by Varni, James W Bendo, Cristiane B Denham, Jolanda Shulman, Robert J Self, Mariella M Neigut, Deborah A Nurko, Samuel Patel, Ashish S Franciosi, James P Saps, Miguel Verga, Barbara Smith, Alicia Yeckes, Alyson Heinz, Nicole Langseder, Annette Saeed, Shehzad Zacur, George M Pohl, John F Producer: 20151016 In: Journal of pediatric gastroenterology and nutrition vol. 59 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)