Li, HuiHua
Allen, John Carson Jr.
Thumboo, Julian
Tan, York Kiat
Article History
Received: 23 April 2019
Accepted: 24 June 2019
First Online: 3 July 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Informed consent was obtained from all individual participants included in the study.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee (SingHealth Centralised Institutional Review Board (CIRB), Reference Number: 2015/3151) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.