Funding for this research was provided by:
Ministry of Health -Singapore
The Singapore Millennium Foundation of the Temasek Trust
Text and Data Mining valid from 2019-06-10
Received: 11 July 2018
Accepted: 31 May 2019
First Online: 10 June 2019
Ethics approval and consent to participate
: Approval for the study was granted by the institutional ethics committee: the National Healthcare Group, Domain Specific Review Board, and the Singhealth Centralised Institution Review Board. A written informed consent was obtained from the participants preceding the survey and the examination. Participants who were unable to provide informed consent, written informed consent were then ascertained from their legally acceptable representative or next of kin.
: Not Applicable.
: The authors declare that they have no competing interests.