Liu, Yongmei
Chen, Sixuan
Bell, Chris
Tan, Justin
Article History
Received: 3 May 2018
Accepted: 14 March 2019
First Online: 15 April 2019
Compliance with Ethical Standards
:
: The authors have no conflict of interest.
: We certify that 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. Approvals have been obtained from the Human Participants Review Sub-Committee.
: We further certify that informed consent was obtained from all participants included in the study.