Konakova, O. V., O. V. Usachova, and E. A. Silina. “Analysis of the Morbidity and the Coverage of Vaccination Against Pertussis Level in Zaporozhye Region”. Zaporozhye Medical Journal 15, no. 4 (September 6, 2013). Accessed May 7, 2024. http://zmj.zsmu.edu.ua/article/view/16907.