Funding for this research was provided by:
Ministry of Higher Education, Malaysia (RACER06-2019)
Universiti Malaysia Sabah (GUG0368-1/2019)
Received: 15 May 2020
Accepted: 2 August 2020
First Online: 14 August 2020
Ethics approval and consent to participate
: The study was registered, and ethical clearance obtained from the National Medical Research Register (NMRR-18-2869-41360). All data obtained in this study were saved in a password-protected computer that is only accessible to the researchers. The confidentiality of each patient is maintained as no identifiable individual information was recorded.
: Not applicable.
: The authors declare that they have no competing interests.