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. 2003 Nov 3;1:76. doi: 10.1186/1477-7827-1-76

Figure 3.

Figure 3

Histological sections on Day 6 of culture representing (A) a follicle cultured with activin showing early antrum formation (arrow), and (B) a degenerating follicle containing pyknotic nuclei in granulosa cells (arrows). Bar = 20 μm.