Fik, V.B., Chelpanova, I.V., Paltоv E.V. and Kovalyshyn, O.A. 2019. Electron microscopic studies of rat periodontal tissues are normal. Морфологія / Morphologia / Morfologìâ. 13, 2 (Jun. 2019), 76–80. DOI:https://doi.org/10.26641/1997-9665.2019.2.76-80.