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Ipp M, Taddio A, Sam J, Gladbach M, Parkin PC.Ipp M, et al. Among authors: parkin pc.Arch Dis Child. 2007 Dec;92(12):1105-8. doi: 10.1136/adc.2007.118695. Epub 2007 Aug 8.Arch Dis Child. 2007.PMID: 17686797Free PMC article.Clinical Trial.