Comparison of No. of oocytes retrieved.

<p>Within each age range, the number of retrieved oocytes in the long protocol group was significantly greater than those in the short protocol group (<i>P</i><0.05). They decreased with increasing age, and the differences were significant according to one-way ANOVA analysis (<i>P</i><0.05). * <i>P</i><0.05 versus the short protocol group.