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Macleod DA, Pattisson PH.Macleod DA, et al.Br Med J (Clin Res Ed). 1988 Feb 13;296(6620):498-9. doi: 10.1136/bmj.296.6620.498-c.Br Med J (Clin Res Ed). 1988.PMID: 3126876Free PMC article.No abstract available.