She, Yunlang
Zhang, Lei
Zhu, Huiyuan
Dai, Chenyang
Xie, Dong
Xie, Huikang
Zhang, Wei
Zhao, Lilan
Zou, Liling
Fei, Ke
Sun, Xiwen
Chen, Chang
Funding for this research was provided by:
Shanghai Hospital Development Center (16CR3116B)
Article History
Received: 16 October 2017
Revised: 19 March 2018
Accepted: 20 April 2018
First Online: 4 June 2018
Compliance with ethical standards
:
: The scientific guarantor of this publication is Chang Chen.
: 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 waived by the institutional review board.
: Institutional review board approval was obtained.
: • retrospective• observational• performed at one institution