Funding for this research was provided by:
Education University of Hong Kong (SEC/RSS2016-17-011)
Tung Wah College (2014-00-74-RGC140301)
Received: 4 August 2017
Accepted: 21 May 2018
First Online: 29 May 2018
Ethics approval and consent to participate
: Ethical approval from the Committee on the Use of Human and Animal Subjects in Teaching and Research of Tung Wah College was obtained (HASC1415H04). All participants were given informed consent for participation in this study.
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