CJCP     2021 23 (3):  221-228    ISSN: 1008-8830  CN: 43-1301/R Efficacy and safety of COVID-19 vaccines: a systematic review XING Kai, TU Xiao-Yan, LIU Miao, LIANG Zhang-Wu, CHEN Jiang-Nan, LI Jiao-Jiao, JIANG Li-Guo, XING Fu-Qiang, JIANG Yi Department of Pediatrics, Renmin Hospital of Wuhan University, Wuhan 430060, China Received: 2021-01-25  Revised: 2021-02-19  Online: null Supporting info