“OVARIAN CYSTS AND HYPERESTROGENIA AS A SIDE EFFECT OF TAMOXIFEN THERAPY IN BREAST CANCER PATIENTS OF REPRODUCTIVE AND POSTMENOPAUSAL AGE”. Voprosy Onkologii, vol. 64, no. 1, Jan. 2018, pp. 88-94, https://doi.org/10.37469/0507-3758-2018-64-1-88-94.