Funding for this research was provided by:
Tote board - Singapore (NYP02)
Received: 11 May 2021
Accepted: 20 April 2023
First Online: 1 May 2023
: Informed consent was obtained from all participants to complete the protocol approved by the Ethics Committee of Nanyang Polytechnic (ref: SIT-2014-001), Singapore.
: The authors received consent for the publication of the photographs used within the manuscript.
: The authors declare that they have no competing interests.