Objective To investigate the clinical significance of anti-PR3, anti-MPO antibody and ANCA in patients with systemic vasculitis.

• 目的探讨抗蛋白酶-3(PR3)抗体、抗髓过氧化物酶(MPO)抗体和抗中性粒细胞胞质抗体(ANCA),在系统性血管炎患者中的检测及临床意义。