Funding for this research was provided by:
National Neuroscience Institute
Received: 30 August 2021
Accepted: 16 November 2021
First Online: 30 November 2021
: The study was approved by the Singhealth Centralized Review Board. The informed consent process was in accordance with the Declaration of Helsinki and local clinical research regulations.
: Not applicable.
: The authors declare that they have no competing interests.