Zhang, Xiaoxian
Xia, Tingting
Lai, Zhengdao
Zhang, Qingling
Guan, Yubao
Zhong, Nanshan
Funding for this research was provided by:
National Natural Science Fund Project of China (81371633)
Science and Technology Planning Project of Guangdong Province (2013B021800310)
Article History
Received: 26 May 2018
Revised: 20 September 2018
Accepted: 23 November 2018
First Online: 7 January 2019
Compliance with ethical standards
:
: The scientific guarantor of this publication is Yubao Guan.
: 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 has significant statistical expertise.
: Written informed consent was obtained from all subjects (patients) in this study.
: Institutional Review Board approval was obtained.
: • retrospective• case-control study• performed at one institution