TABLE 1.

Grade I COCs collected per ovary during different seasons of the year.

Season	No. ovaries	No. COCs grade I	Recovery rate per ovary
Spring	72	452	6.3 ± 1.4
Summer	18	160	9.1 ± 1.13
Fall	53	473	8.6 ± 1.7
Winter	27	220	8.9 ± 2.1
Total	170	1,305	–

In the same column, percentages without the same superscripts differed significantly (p-value < 0.05).

COC, cumulus–oocyte complex.