Received: 7 March 2021
Accepted: 14 December 2021
First Online: 15 March 2022
: All patients gave written informed consent to participate. Permission to perform this study was granted by the Health Research Ethics Committee (HREC) of Stellenbosch University (HREC study number: S18/02/024). This study was conducted in accordance with the World Medical Association Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.