Funding for this research was provided by:
National Medical Research Council (HSRG/0034/2013)
Text and Data Mining valid from 2020-01-02
Received: 11 December 2018
Accepted: 4 December 2019
First Online: 2 January 2020
Ethics approval and consent to participate
: The SingHealth Centralised Institutional Board approved this research (Ref No: 2014/916/A). Written informed consent was obtained from all participants.
: Not applicable.
: All authors disclose there is no conflict of interest in production of this manuscript.