Meta-Analysis
Copyright ©The Author(s) 2022.
World J Clin Cases. Apr 26, 2022; 10(12): 3773-3786
Published online Apr 26, 2022. doi: 10.12998/wjcc.v10.i12.3773
Figure 1
Figure 1 Flow diagram of study selection (up to June 2021). CBM: Chinese Biological Medical database; CNKI: China National Knowledge Infrastructure; VIP: China Science and Technology Journal database; WF: Wanfang database and foreign language databases including PubMed, Embase, Cochrane Library, Web of Science, etc.