The role of chemokines in the immunopathogenesis of rheumatoid arthritis (RA) has been actively investigated in recent years. Angiogenic and angiostatic chemokines are important mediators of angiogenesis in the development and extent of pannus. Peripheral blood and synovial fluid (SF) is a major biomaterial in clinical and immunological studies. https://giantrobos.shop/product-category/functional/