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. 2013 Autumn;3(4):347–355.

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This is an Open Access article distributed under the terms of the Creative Commons Attribution License, (http://creativecommons.org/licenses/by/3.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure. 1 A, B — Rat testes after hematoxylin-eosin staining and ×100, ×400. Figures display representative images for a healthy control. It show images of the diameter of seminiferous tubules (DST), thickness of the epithelium, and spermiogenesis index (SPI). This observation indicates normal interstitial tissue, Sertoli cells, and thickness of the epithelium. Their seminiferous tubules showed all of the distinct developmental stages of spermatogenesis, including spermatozoa in the lumen of the tubules