Overexpression of aromatase P450 in leiomyoma tissue is driven primarily through promoter I.4 of the aromatase P450 gene (CYP19) - Shozu, M; Sumitani, H; Segawa, T; Yang, H J; Murakami, K; Kasai, T; Inoue, M (J Clin Endocrinol Metab, 2002)