Daragan, G. M., T. Yu. Krushinska, D. O. Stepanskiy, I. V. Demchyshyna, and I. P. Kolesnikova. 2018. “Topical Issues of Vaccination and Epidemiological Surveillance over Measles and Rubella in Ukraine”. Medicni Perspektivi 23 (1(part1):38-43. https://doi.org/10.26641/2307-0404.2018.1(part1).127206.