Research Article
High Avidity dsDNA Autoantibodies in Brazilian Women with Systemic Lupus Erythematosus: Correlation with Active Disease and Renal Dysfunction
Figure 1
Serum levels of C3 in SLE patients without proteinuria (UP negative, P/C ratio ≤ 0.23) and presenting urine protein (UP positive, P/C ratio > 0.23).