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Hitchcock E, Lewin M.Hitchcock E, et al. Among authors: lewin m.Br Med J. 1969 Oct 4;4(5674):44-5. doi: 10.1136/bmj.4.5674.44.Br Med J. 1969.PMID: 4898289Free PMC article.No abstract available.
Lewin MR, Stagg BH, Clark CG.Lewin MR, et al.Br Med J. 1973 Apr 21;2(5859):139-41. doi: 10.1136/bmj.2.5859.139.Br Med J. 1973.PMID: 4699593Free PMC article.