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Concentrations of Plasma Testosterone in Normal Men during Sleep

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Abstract

IN man, several studies1,2 have demonstrated diurnal variation, with a morning peak, in plasma testosterone—the most potent naturally occurring androgen. The origin of this variation is not known.

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Authors and Affiliations

  1. Sleep Laboratory, Department of Psychiatry, University of Edinburgh,

    J. I. EVANS & A. W. MACLEAN

  2. MRC Clinical Endocrinology, Research Unit, Edinburgh

    A. A. A. ISMAIL & D. LOVE

Authors
  1. J. I. EVANS
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  2. A. W. MACLEAN
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  3. A. A. A. ISMAIL
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  4. D. LOVE
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EVANS, J., MACLEAN, A., ISMAIL, A. et al. Concentrations of Plasma Testosterone in Normal Men during Sleep. Nature 229, 261–262 (1971). https://doi.org/10.1038/229261a0

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  • DOI: https://doi.org/10.1038/229261a0

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