Rheumatoid arthritis biospecimens are human serum and plasma samples isolated from the consented donors, ideal for in-vitro biomedical research. The biosamples are critically measured for arthritic laboratory investigations like rheumatoid factor antibody (RF), erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), and anti-citrullinated protein/peptide antibodies (ACPA/anti-CCP) and stored at <-180C at our partners biobank.