. 2015 Sep 2;2015:625192. doi: 10.1155/2015/625192

Table 2.

Comparison analysis of follicles numbers in different aged monkey ovaries.

Groups	Number of ovaries counted	Number of sections counted per ovary	Number of healthy follicles per ovary per animal (mean ± SEM)	Number of atretic follicles per ovary per animal (mean ± SEM)^∗	Total follicles per ovary per animal (mean ± SEM)
Young	3	31	22097 ± 1243.0^A	400.7 ± 21.4^A	22498 ± 1264.0^A
Middle-aged	3	33	12581 ± 512.7^B	534.7 ± 39.1^B	13115 ± 499.4^B
Old	3	20	7.3 ± 2.3^C	2.7 ± 1.1^C	10.0 ± 1.3^C

^∗Atretic follicles with no obvious oocytes were not counted. A, B, and C in each column indicate significant differences among groups (P < 0.001).