Khalmurad Akhmedov, Lola Abdurakhimova, Nargiza Abdurakhmanova, Sagdiyana Buranova, Feruza Khalmetova 2020. CHANGES IN THE IMMUNE SYSTEM WITH RHEUMATOID ARTHRITIS IN THE BACKGROUND OF THE INFLUENCE OF ENVIRONMENTAL FACTORS OF THE EXTERNAL ENVIRONMENT. International Journal of Advanced Science and Technology. 29, 05 (Apr. 2020), 1907 - 1917.