Issayeva, A., L. . Yeraliyeva, G. Tanbayeva, and A. Saidakhmetova. “CHANGES IN COVERAGE OF PNEUMOCOCCAL PREVENTION ACTIVITIES DURING THE COVID-19 PANDEMIC”. Interdisciplinary Approaches to Medicine, vol. 4, no. 2, Feb. 2024, doi:10.26577/appmed2023v4i2a5.