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.gov website belongs to an official
government organization in the United States.
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Two representative pictures (200× and 400×) are shown for each marker. Sc, spermatocyte; Sg, spermatogonia; Se, Sertoli cells; Sd, spermatid; Pb, peritubular cell. For 200× images, scale bar=50 μm; for 400× images, scale bar=25 μm.
