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Credit
Sex differentiation and development : proceedings of a symposium held at the Royal Scoiety of Medicine, Wimpole Street, London, on 10 and 11 April 1958 / edited on behalf of the Society for Endocrinology by C.R. Austin. Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0). Source: Wellcome Collection.