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(a–c) Photomicrographs of the mature male ratś testes of the i-PRF treated group; (a) Showing semi normal, intact tubules and intertubular parts that appeared looks like normal resembling the normal control group with very slightly epithelial degeneration in individual tubules. (b, c) Showing normal, organized stratified seminiferous epithelium without any pathological changes. Stain: All) H&E. Scale bars: All = 40 µm, except a = 300 µm.
