Popov, N. N., A. N. Savvo, O. V. Piontkovsky, N. I. Timokhina, and E. A. Dyachenko. “THE EXPERIENCE OF HYPOGAMMAGLOBULINEMIA TREATMENT IN CHILDREN”. The Journal of V. N. Karazin Kharkiv National University, Series "Medicine", no. 24, 1, pp. 109-12, https://periodicals.karazin.ua/medicine/article/view/6717.