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Fig. 3 | Stem Cell Research & Therapy

Fig. 3

From: Human umbilical cord stem cell conditioned medium versus serum-free culture medium in the treatment of cryopreserved human ovarian tissues in in-vitro culture: a randomized controlled trial

Fig. 3

Histological analysis of the thawed OTs. a The morphologically normal primordial follicles (*), primary follicles (thin arrow), and secondary follicles (thick arrow) stained with H&E in the thawed OTs in groups A (a, b), B (c, d) and C (e, f) (original magnification × 400, scale bar = 100 μm). b Sum of PF as evaluated by H&E staining over 8 days between groups B and C. c Percentage of PF as evaluated by H&E staining before and after the in-vitro culture at nine time points in the three groups. *p < 0.05, versus group C

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