Khilchevska, V. S., and L. V. Kolyubakina. “The Role of Clinical-Anamnestic Indices in Diagnostics of Severe Persisting Bronchial Asthma in Children”. Journal of Education, Health and Sport, vol. 7, no. 1, Jan. 2017, pp. 293-9, https://apcz.umk.pl/JEHS/article/view/4199.