Article History
Accepted: 27 July 2021
First Online: 18 August 2021
Declarations
:
: EC, ST, NSC conceived the review idea. EC and NSC performed the search and EC and ST filtered the articles for inclusion. All authors reviewed the included manuscripts and contributed equally to the drafting and review of the manuscript.
: This review was funded by the Chan Heng Leong Research Award, National University Hospital. The funding organization had no role in the design, conduct, interpretation, review, or approval of the manuscript.
: The authors have no personal or financial conflicts of interests to disclose.
: Not applicable.
: Not applicable.
: Not applicable.
: Data and study material are available on reasonable request.
: Not applicable.