Cheung, Yin Bun http://orcid.org/0000-0003-0517-7625
Tan, Hui Xing
Luo, Nan
Wee, Hwee Lin
Koh, Gerald C. H.
Article History
Accepted: 21 July 2019
First Online: 27 July 2019
Compliance with ethical standards
:
: All authors declare that they have no potential 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 (National University of Singapore Institutional Review Board S17-257E) and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.