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DeSantis A, Harkins D, Tronick E, Kaplan E, Beeghly M.DeSantis A, et al.Infant Behav Dev. 2011 Apr;34(2):280-92. doi: 10.1016/j.infbeh.2011.01.003. Epub 2011 Mar 12.Infant Behav Dev. 2011.PMID: 21397952Free PMC article.
