Relationship between Blood Pressure Level and Renin-aldosterone System Activity in Patients with Essential Hypertension:a Meta-analysis 
YUAN Bo,MA Qing,LI Wenfei,LI Zhipeng
Chinese General Practice . 2021, (11): 1394 -1399 .  DOI: 10.12114/j.issn.1007-9572.2021.00.422