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Updated: Aug 30, 2026

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Mouse Round Spermatid Injection

Published on: January 26, 2024

Status and future direction of male contraceptive development

C Richard Lyttle1, Gregory S Kopf

  • 1Women's Health Research Institute, Wyeth Research, PO Box 8299, Philadelphia, PA 19101-8299, USA. LyttleR@wyeth.com

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