Meta-analysis of the Association of Beta-blocker Use with Falls in the Elderly 
CHEN Shi,YANG Xiangyu,GAO Jing,WU Chenxi,BAI Dingxi,ZHAO Xia,YU Jingya,ZHONG Yizhu
Chinese General Practice . 2019, (29): 3590 -3595 .  DOI: 10.12114/j.issn.1007-9572.2018.00.267