Shaban, N. Z., W. A. Hegazy, S. M. Abdel-Rahman, O. M. Awed, and S. A. Khalil. “Potential Effect of Olea Europea Leaves, Sonchus Oleraceus Leaves and Mangifera Indica Peel Extracts on Aromatase Activity in Human Placental Microsomes and CYP19A1 Expression in MCF-7 Cell Line: Comparative Study”. Cellular and Molecular Biology, vol. 62, no. 9, Aug. 2016, pp. 11-19, http://cellmolbiol.org/index.php/CMB/article/view/915.