Received: 25 November 2020
Accepted: 18 February 2021
First Online: 22 February 2021
Ethics approval and consent to publication
: Ethics approval was obtained from Research and Ethics Committee, Faculty of Medicine, Universiti Malaysia Sarawak. All participants provided written informed consent. Confidentiality and anonymity were ensured.
: Not applicable.
: The authors declare that they have no competing interests.