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Vitamin D supplementation in adolescents with irritable bow..:

Doaa El Amrousy ; Samir Hassan ; Heba El Ashry..
http://www.saudijgastro.com/article.asp?issn=1319-3767;year=2018;volume=24;issue=2;spage=109;epage=114;aulast=El.  , 2018