Table 3.
Analysis of DNA fragmentation after vitrifycation by comet assay

Equilibration time	No. of oocytes	No. of oocytes with comet tail (%)
Control	13	2 (15.3)
5 min	14	6 (42.9) a
10 min	16	7 (43.8) a
15 min	15	12 (73.3) a, b

: p<0.05 control vs. experimental group
: p<0.05 5 and 10 groups vs. 15 groups