Gudaryan, A. A., Idashkina, N. G. and Shirinkin, S. V. (2014) “Comparative effectiveness of using resorbable membranes of polylactic acid and collagen in regeneration of bone defects in patients with periimplantitis”., Medicni perspektivi, 19(1), pp. 91–96. doi: 10.26641/2307-0404.2014.1.24701.