Pre-emption dimensional study aiming to obtain significant statistical results for the variation of serum cortisol during ovarian stimulation.

Unlabelled: Ovarian stimulation has an important place in the contemporary impressive development of infertility treatment. There are few and not concordant data concerning its influence on cortisol serum levels.

Aim: The present study aimed at finding the necessary number of determinations in order to statistically assess the variation of cortisol during and caused by the ovarian stimulation.