PLOD1 and Infertility: There were no statistically significant differences in the patients’ basic parameters (age, AMH, AFC on day 2 or 3 prior to stimulation start, number of years of infertility and number of previous stimulations, BMI, TSH and the hormonal parameters (estradiol (E2), progesterone (P4), FSH and LH) at the start of stimulation on day 2 or 3 between the patients randomized in CG and in SG.