
Keywords: SLE; systemic lupus erythematosus; RA; rheumatoid arthritis; C3; complement factor 3; IgM, IgG; IgA immunoglobulin M, G, A; APS; antiphospholipid syndrome; anti-Ro/SSA; anti-Sjögren syndrome-related antigen A; HF; heart failure; CVD; cardiovascular disea