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Article History

Accepted: 2 September 2020

First Online: 12 November 2020

Declarations

:

: Tianshu Ren, Shu Wang, Zexu Shen, Chang Xu, Yingshi Zhang, Fuhai Hui, Xingshun Qi, and Qingchun Zhao have no conflicts of interest that are directly relevant to the content of this article.

: Not applicable.

: No funding was received for the preparation of this article.

: Not applicable.

: Not applicable.

: Data sharing is not applicable to this article as no datasets were generated or analyzed during the current study.

: Not applicable.

: RT contributed to the study conception, literature search, study selection, data extraction, quality assessment, data synthesis and analysis, and drafting of the manuscript. WS contributed to the literature search, study selection, data extraction, quality assessment, and review of the manuscript. ZS contributed to the study selection, data extraction, and quality assessment. XC contributed to the data synthesis and analysis. ZY contributed to the methodology for research and review of the manuscript. HF contributed to the literature search. QX contributed to the clinical expertise regarding inclusion and exclusion criteria, outcomes and prioritization, and review of the manuscript. ZQ contributed to the study conception, supervised the project, and reviewed the manuscript. All authors have made an intellectual contribution to the manuscript and approved the submission.