Funding for this research was provided by:
National University of Singapore, Ministry of Health, Singapore, and National University Health System, Singapore.
Text and Data Mining valid from 2018-04-05
Received: 19 December 2017
Accepted: 27 March 2018
First Online: 5 April 2018
Ethics approval and consent to participate
: Ethics approval for the Singapore Health 2 Study was obtained by the National University of Singapore Institutional Review Board (NUS IRB: reference 13–512). Written informed consent was obtained from all participants before the conduct of the study.
: Not applicable.
: The authors declare that they have no competing interests.
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