DEVELOPMENT OF THE TECHNOLOGY FOR OBTAINING A THICK EXTRACT FROM FRUITS OF MILK THISTLE WITH THE STAGE OF ULTRASONIC INFLUENCE Статья Zhilyakova E.T., Novikov O.O., Tsvetkova Z.E., Boyko N.N., Pisarev D.I., Novikova M.Yu. International Journal of Green Pharmacy. Medknow Publications. Том 12. 2018. С. 359-S362