Serum Vascular Endothelial Growth Factor Levels in Systemic Lupus Erythematosus Patients with or without Antiphospholipid Syndrome:a Comparative Study 
XING Yixi,CHEN Weifei,XU Xiayu,LIN Qianqi,YAO Qicen,LI Jianhong
Chinese General Practice . 2019, (24): 2918 -2923 .  DOI: 10.12114/j.issn.1007-9572.2019.00.044