Kharseeva, G.G., J.N. Frolova, V.N. Gerasimov, and T.D. Gasretova. 2014. “The Main Properties of Diphtheriae Causative Microorganism Circulated in Postepidemic Period from Biofilm Culture”. International Journal of Pediatrics and Child Health 2 (1):19-22. https://doi.org/10.12974/2311-8687.2014.02.01.4.