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Tough S, Tofflemire K, Benzies K, Fraser-Lee N, Newburn-Cook C.Tough S, et al.Matern Child Health J. 2007 Mar;11(2):189-98. doi: 10.1007/s10995-006-0156-1. Epub 2007 Jan 20.Matern Child Health J. 2007.PMID: 17237994
Davey HL, Tough SC, Adair CE, Benzies KM.Davey HL, et al.Matern Child Health J. 2011 Oct;15(7):866-75. doi: 10.1007/s10995-008-0314-8. Epub 2008 Feb 7.Matern Child Health J. 2011.PMID: 18256913Clinical Trial.