Zhao, Sen
Ren, Wenyan
Zhuang, Yan
Wang, Zhixue
Article History
Received: 26 December 2018
Accepted: 11 February 2019
First Online: 14 March 2019
Compliance with ethical standards
:
: Author Sen Zhao declares that he has no conflict of interest. Author Wenyan Ren declares that he has no conflict of interest. Author Yan Zhuang declares that he has no conflict of interest. Author Zhixue Wang declares that he has no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.This article does not contain any studies with animals performed by any of the authors.
: Informed consent was obtained from all individual participants included in the study.