Two sequence variants, rs3820282 at WNT4 and rs12325192 near SALL1 also associate with other traits that are strongly affected by estrogen exposure, i.e. leiomyoma (rs3820282 and rs12325192), gestational duration (rs3820282) and endometriosis (rs3820282). This evidence concerns the gene WNT4 and leiomyoma.