Physicochemical Stability of Hydroxyapatite-Low-Molecular Polyethylene Glycol 400 Composite Systems in Biological Media. - Boshytska, N. V.; Protsenko, L. S.; Budilina, O. N.; Kaplunenko, N. V.; Minitskiy, A. V.; Uvarova, I. V. (Powder Metallurgy & Metal Ceramics, 2018)