AMH and ovarian endometriosis: Patients with bilateral ovarian endometriosis showed a significantly negative but only moderate correlation between AMH levels and age (R = −0.633; p < 0.001), which was significantly lower than in the healthy controls (R = −0.633 vs. R = −0.834; p = 0.006) but not in the patients with unilateral ovarian endometriosis (R = −0.663 vs. R-0.774; p = 0.093).