Zou, Shengqi
Wu, Xinchun
Huang, Binbin
Liu, Chang
Funding for this research was provided by:
Beijing Education Science Fund (AFA15199)
Article History
First Online: 19 October 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 Beijing Normal University 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.