INFLUENCE OF SILVER AND SELENIUM NANOPARTICLES ON MESENCHYMAL STROMAL CELLS Article Kuzmenko V.V., Stoynova A.M., Stanishevskaya I.E., Stanishevskiy Y.M., Vasilenko I.A. Environmental Research, Engineering and Management. Kaunas University of Technology. Vol. 74. 2018. P. 60-65