[1]
S. N. . Ostad, H. R. . Monsef-Esfahani, S. . Taheri, E. . Azizi, and M. A. Faramarzi, “Effects of Flavonoid Fractions from Calendula officinalis Flowers in Parent and Tamoxifen Resistant T47D Human Breast Cancer Cells: Effects of flavonoids in human breast cancer cells”, Iran J Pharm Sci, vol. 1, no. 3, pp. 161–166, Sep. 2005.