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Fassett RG, Owen JE, Fairley J, Birch DF, Fairley KF.Fassett RG, et al.Br Med J (Clin Res Ed). 1982 Nov 20;285(6353):1455-7. doi: 10.1136/bmj.285.6353.1455.Br Med J (Clin Res Ed). 1982.PMID: 6814599Free PMC article.