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Bolton DP, Cross KW, McKettrick AC.Bolton DP, et al. Among authors: cross kw.Br Med J. 1972 Oct 14;4(5832):80-1. doi: 10.1136/bmj.4.5832.80.Br Med J. 1972.PMID: 5077471Free PMC article.No abstract available.
Godfrey S, Bolton DP, Cross KW.Godfrey S, et al. Among authors: cross kw.Br Med J. 1970 Feb 21;1(5694):475-7. doi: 10.1136/bmj.1.5694.475.Br Med J. 1970.PMID: 4392219Free PMC article.