Funding for this research was provided by:
Health and Medical Research Fund (16151222)
Text and Data Mining valid from 2018-11-06
Received: 13 October 2018
Accepted: 24 October 2018
First Online: 6 November 2018
Ethics approval and consent to participate
: The current study involves human participants and the research protocol had been approved by the committee of Research Ethics and Safety (HASC) at Hong Kong Baptist University. All participants provided written informed consent to participate.
: Not applicable.
: The authors declare that they have no competing interests.
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