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Hamilton ND, Hegarty M, Calder A, Erb TO, von Ungern-Sternberg BS.Hamilton ND, et al.Paediatr Anaesth. 2012 Apr;22(4):345-50. doi: 10.1111/j.1460-9592.2011.03772.x. Epub 2011 Dec 28.Paediatr Anaesth. 2012.PMID: 22211867