Liu, Tie
Yang, Chenlong
Deng, Xiaofeng
Li, Anqi
Xin, Yu
Yang, Jun
Xu, Yulun http://orcid.org/0000-0001-8365-1930
Article History
Received: 21 December 2018
Revised: 19 June 2019
Accepted: 24 July 2019
First Online: 31 August 2019
Compliance with ethical standards
:
: The authors declare that they have 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.
: Informed consent was obtained from all individual participants included in the study.