DUDNYK, V. M., BEREZNYCKYI, O. V. and VYZHGA, Yu. V. Monitoring of the treatment effect of the secondary myopathy syndrome in patients with juvenile rheumatoid arthritis. Journal of Education, Health and Sport. Online. 31 August 2015. Vol. 5, no. 8, pp. 443-447. [Accessed 3 December 2023].