Funding for this research was provided by:
Lien Centre for Palliative Care (N-911-000-030-091)
Received: 10 January 2021
Accepted: 28 June 2021
First Online: 7 July 2021
: Ethics approvals were obtained from the National University of Singapore-Institutional Review Board (NUS-IRB B-15–319), Singapore and Hue Central Hospital Ethics Committee, Vietnam (230/QD-BVH-HDDD). Verbal informed consent, the default method of obtaining informed consent for similar studies in Vietnam, was obtained prior to the interview as approved by the ethics committee.
: Not applicable.
: The authors declare that they have no competing interests.