Xu, Zhihua
Yang, Fu
Funding for this research was provided by:
The Lingnan Normal University Special Project for Talents (ZW1803)
Article History
First Online: 11 August 2018
Compliance with Ethical Standards
:
: Author Zhihua Xu has received grant from Lingnan Normal University Special Project for Talents (grant number ZW1803). Author Fu Yang 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.
: Informed consent was obtained from all individual participants included in the study.