Zheng, Lijun
Su, Yanchen
Funding for this research was provided by:
Fundamental Research Funds for the Central Universities (SWU1709244)
Article History
Received: 17 January 2017
Revised: 17 January 2018
Accepted: 18 January 2018
First Online: 30 January 2018
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.