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Vessey MP, Doll R, Jones K, McPherson K, Yeates D.Vessey MP, et al. Among authors: doll r.Br Med J. 1979 Jun 30;1(6180):1757-60. doi: 10.1136/bmj.1.6180.1757.Br Med J. 1979.PMID: 466211Free PMC article.
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