Yаkubovich RN. The National Calendar of Preventive Vaccinations is the Basis of the System of Immunoprophylaxis of Infectious Diseases. IJACT [Internet]. 2025 Mar. 1 [cited 2026 Sep. 5];3(2):59-63. Available from: https://www.medicaljournals.eu/index.php/IJACT/article/view/1599