Шевченко, Н. С., І. С. Лебець, and Д. А. Кашкалда. “Changes of Connective Tissue Biochemical Indexes in Children and Adolescents With Inflammatory Diseases of Joints”. The Journal of V.N.Karazin Kharkiv National University. Series «Biology», Vol. 26, 1, pp. 11-15, https://periodicals.karazin.ua/biology/article/view/6252.