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Richens ER, Williams MJ, Gough KR, Ancill RJ.Richens ER, et al. Among authors: ancill rj.Gut. 1974 Jan;15(1):19-23. doi: 10.1136/gut.15.1.19.Gut. 1974.PMID: 4820628Free PMC article.
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Ancill RJ, Richens ER, Norton DA.Ancill RJ, et al.Trans Ophthalmol Soc U K (1962). 1970;89:863-6.Trans Ophthalmol Soc U K (1962). 1970.PMID: 5276707No abstract available.