Kozlov, S.V., Mayevsky, A.E., Mіshalov V.D. and Sulayeva, O.N. 2015. Ultrastructural analysis of the contractile apparatus in the rat’s heart on the stages of ontogeny. Морфологія / Morphologia / Morfologìâ. 9, 1 (Mar. 2015), 34–38. DOI:https://doi.org/10.26641/1997-9665.2015.1.34-38.