Received: 16 November 2021
Accepted: 30 January 2022
First Online: 10 February 2022
: The study protocol was approved by the IIUM Research Ethics Committee with the following reference number: IIUM/504/14/11/2/IREC 2020-092. Consent was waived due to the retrospective nature of the study.
: Not applicable.
: The author declare that there is no competing interests.