Sirojiddinova Khiromon Nuriddinovna, Tukhtayeva Mashkhura Mukhiddinovna, & Usmanova Munira Fayzullaevna. (2021). Effectiveness of immunization of frequently sick children in the treatment of respiratory diseases. Central Asian Journal of Medical and Natural Science, 2(1), 103–106. https://doi.org/10.51699/cajmns.v2i1.84