<qa>  What is the name of the group that will be defined by the ESHREASRM- Women with and without a diagnosis of polycystic ovarian syndrome aged 18-40 with an uncomplicated singleton pregnancy, who deliver a female baby at term 37 weeks gestation or longer. Women in the PCOS cohort will be defined by all the ESHREASRM Rotterdam criteria. Women in the control group, non-PCOS who deliver a female baby will be age matched to the PCOS group. Conception method naturalassisted and maternal parity does not affect inclusion but will be documented for subsequent analysis. 