Funding for this research was provided by:
Research Grant Council, The Hong Kong SAR Government (14603015)
Article History
First Online: 25 June 2018
Compliance with Ethical Standards
:
: All procedures performed in studies involving human participants were approved by the Survey and Behavioral Research Ethics Committee of The Chinese University of Hong Kong (ref. number: 14603015). This article does not contain any studies with animals performed by the author.
: Informed consent was obtained from all individual participants included in the study.
: The authors declare that they have no conflict of interest.