Yuan, Congru
Jin, Feng
Guo, Xiuling
Zhao, Sheng
Li, Wei
Guo, Haidong
Article History
Received: 26 December 2018
Accepted: 3 February 2019
First Online: 27 February 2019
Compliance with Ethical Standards
:
: Author Congru Yuan declares that he has no conflict of interest. Author Feng Jin declares that he has no conflict of interest. Author Xiuling Guo declares that he has no conflict of interest. Author Sheng Zhao declares that he has no conflict of interest. Author Wei Li declares that he has no conflict of interest. Author Haidong Guo 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.