Dudnyk, V. M., O. V. Bereznyckyi, and Yu. V. Vyzhga. 2015. “Monitoring of the Treatment Effect of the Secondary Myopathy Syndrome in Patients With Juvenile Rheumatoid Arthritis”. Journal of Education, Health and Sport 5 (8):443-47. https://apcz.umk.pl/JEHS/article/view/2988.