Juvenile idiopathic arthritis (JA) is an arthritis of unknown cause, lasting more than 6 weeks, developing in children under the age of 16 years, excluding other joint pathology [1]. The prevalence of UA in Europe is 0.30.8 per 100,000 children; in Moscow, the prevalence of UA among children aged 0 to 17 has increased 2-fold … Continue reading Modern basic therapy of juvenile arthritis as a method of rehabilitation and disability prevention