Kaliappan, V., and P. Kumaravelu. “Antiproliferative Effects of Vanilla Planifolia Leaf Extract Against Breast Cancer MCF-7 Cells”. International Journal of Basic & Clinical Pharmacology, vol. 8, no. 1, Dec. 2018, pp. 51-55, doi:10.18203/2319-2003.ijbcp20185107.