Boyarskaya, L.N., Herasimchuk, T.S., Kotlova, Y.V. and Davydova, A.H. 2014. Features of the immune response in children of early age with recurrent respiratory infections. Zaporozhye Medical Journal. 16, 5 (Oct. 2014). DOI:https://doi.org/10.14739/2310-1210.2014.5.29119.