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McKenzie SA, Chan E, Dundas I, Bridge PD, Pao CS, Mylonopoulou M, Healy MJ.McKenzie SA, et al. Among authors: healy mj.Arch Dis Child. 2002 Sep;87(3):248-51. doi: 10.1136/adc.87.3.248.Arch Dis Child. 2002.PMID: 12193444Free PMC article.