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Authors
Sun, Li-Ping
Yan, Lu-Bin
Liu, Zhen-Zhen
Zhao, Wen-Jing
Zhang, Cai-Xia
Chen, Yu-Min
Lao, Xiang Qian
Liu, Xudong
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Funding
Funding for this research was provided by:
Natural Science Foundation of Guangdong Province (2019A15150115990)
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Article History
Received: 10 November 2019
Accepted: 20 March 2020
First Online: 6 April 2020
Ethics approval and consent to participate
: Ethical approval for this study was obtained from Ethical Review Committee for Biomedical Research, School of Public Health, Sun Yat-sen University. The study was performed in accordance with the Declaration of Helsinki. The study is a systematic review and meta-analysis and no patients involved.
: This study did not contain any individual person’s data.
: All authors declared that they have no conflicts of interest.
