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Low-Beer TS, Wicks AC, Heaton KW, Durrington P, Yeates J.Low-Beer TS, et al.Br Med J. 1977 Jun 18;1(6076):1568-70. doi: 10.1136/bmj.1.6076.1568.Br Med J. 1977.PMID: 871668Free PMC article.