A recent study suggests differences in kappa-opioid analgesia between men and women (pages 1248–1250).
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Berkley, K. Sex, drugs and…. Nat Med 2, 1184–1185 (1996). https://doi.org/10.1038/nm1196-1184
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DOI: https://doi.org/10.1038/nm1196-1184
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