Nie, Pei
Yang, Guangjie
Wang, Zhenguang http://orcid.org/0000-0003-1365-1198
Yan, Lei
Miao, Wenjie
Hao, Dapeng
Wu, Jie
Zhao, Yujun
Gong, Aidi
Cui, Jingjing
Jia, Yan
Niu, Haitao
Funding for this research was provided by:
National Natural Science Foundation of China (81701688, 81601527)
Natural Science Foundation of Shandong Province (ZR2017BH096, ZR2017MH036)
Key Research and Development Project of Shandong Province (2018GSF118078)
Postdoctoral Science Foundation of China (2018M642617)
Article History
Received: 4 June 2019
Revised: 5 August 2019
Accepted: 14 August 2019
First Online: 10 September 2019
Compliance with ethical standards
:
: The scientific guarantor of this publication is Zhenguang Wang.
: 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.
: One of the authors (Guangjie Yang) has significant statistical expertise.
: Written informed consent was waived by the Institutional Review Board.
: Institutional Review Board approval was obtained.
: • retrospective• case-control study• performed at one institution