Funding for this research was provided by:
National Natural Science Foundation of China (81527803)
National Natural Science Foundation of China (81420108018)
National Key R&D Program of China (SQ2018YFC0115900)
Zhejiang Science and Technology Project (2019C03077)
Natural Science Foundation of Zhejiang Province (LY16H180005)
Article History
Received: 1 November 2019
Revised: 9 December 2019
Accepted: 18 December 2019
First Online: 4 February 2020
Compliance with ethical standards
:
: The scientific guarantor of this publication is Pintong Huang.
: The authors of this manuscript declare no relationships with any companies, whose products or services may be related to the subject matter of the article.
: The authors Jifan Chen and Jianing Zhu have significant statistical expertise.
: Written informed consent was not required for this study because all analyses were based on previously published studies.
: Institutional Review Board approval was not required because all analyses were based on previously published studies.
: Information of study’s subjects or cohorts was extracted from previously published studies which were cited in the article.
: This study is a systematic review and meta-analysis.• prospective• diagnostic or prognostic study• multicenter study