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McKenzie SA, Mylonopoulou M, Bridge PD.McKenzie SA, et al.Eur Respir J. 2001 Dec;18(6):977-81. doi: 10.1183/09031936.01.00071901.Eur Respir J. 2001.PMID: 11829105Free article.
McKenzie SA, Bridge PD, Healy MJ.McKenzie SA, et al.Eur Respir J. 2000 May;15(5):833-8. doi: 10.1034/j.1399-3003.2000.15e04.x.Eur Respir J. 2000.PMID: 10853845Free article.
McKenzie SA, Chan E, Dundas I, Bridge PD, Pao CS, Mylonopoulou M, Healy MJ.McKenzie SA, et al.Arch Dis Child. 2002 Sep;87(3):248-51. doi: 10.1136/adc.87.3.248.Arch Dis Child. 2002.PMID: 12193444Free PMC article.