igg antibodies reactive with human umbilical vein endothelial cells were found in 19 out of 28 patients with rheumatoid vasculitis ( rv ) , in four out of 24 patients with rheumatoid arthritis ( ra ) , in seven out of 10 patients with systemic lupus erythematosus ( sle ) , but not in healthy donors .
C0240903
rheumatoid vasculitis
C0003873
rheumatoid arthritis