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Azad MB, Konya T, Maughan H, Guttman DS, Field CJ, Chari RS, Sears MR, Becker AB, Scott JA, Kozyrskyj AL; CHILD Study Investigators.Azad MB, et al.CMAJ. 2013 Mar 19;185(5):385-94. doi: 10.1503/cmaj.121189. Epub 2013 Feb 11.CMAJ. 2013.PMID: 23401405Free PMC article.