Funding for this research was provided by:
National Medical Research Council (NMRC/HSRG/0057/2016)
Lien Center for Palliative Care (LCPC-IN16-0004, Salary support)
Received: 23 May 2018
Accepted: 7 February 2019
First Online: 14 February 2019
Ethics approval and consent to participate
: The study was approved by the Centralized Institutional Review Board of the Singapore Health Services (#2016/2243).Informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.
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