Funding for this research was provided by:
China Postdoctoral Science Foundation (2017M621686)
Article History
Received: 26 June 2017
Accepted: 18 December 2017
First Online: 27 December 2017
Compliance with Ethical Standards
:
: The authors declare that he/she 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. Moreover, the research process, the investigation of informed consent, and measurement tools have been reviewed and approved by the Ethics Committee of the Chinese University of Hong Kong.