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Homosexual Sons and the Fraternal Birth Order Effect: The Role of Elevated Maternal Intrauterine Testosterone

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Acknowledgments

WHJ is indebted to Sir David Spiegelhalter and to Professor Robert Trivers for their generous assessments of his hypothesizing.

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Authors and Affiliations

  1. Galton Laboratory, Department of Genetics, Evolution and Environment, University College London, London, WC1E 6HH, UK

    William H. James

  2. Paediatric Department, University of Malta Medical School, Msida, Malta

    Victor Grech

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  1. William H. James
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  2. Victor Grech
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Correspondence to William H. James.

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James, W.H., Grech, V. Homosexual Sons and the Fraternal Birth Order Effect: The Role of Elevated Maternal Intrauterine Testosterone. Arch Sex Behav 47, 33–36 (2018). https://doi.org/10.1007/s10508-017-1113-3

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  • DOI: https://doi.org/10.1007/s10508-017-1113-3

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