Selective Accumulation of Poly(Lactic-Co-Glycolic Acid) Nanoparticles in Endotheliocytes and Mesenchymal Stromal Cells Cultured as Mixed-Cell Spheroids. - Leonov GE; Vakhrushev IV; Novikova VD; Burunova VV; Kovshova TS; Malinovskaya YA; Yarygin KN (Bulletin of experimental biology and medicine, 2023)