Речкіна, О. О., В. О. Стриж, and С. М. Руденко. “Use of the AST Questionnaire and Spirometry to Assess the Control of Asthma in Adolescents”. Family Medicine, no. 4, Oct. 2020, pp. 77-81, doi:10.30841/2307-5112.4.2020.217943.