Received: 18 August 2021
Accepted: 6 April 2022
First Online: 20 April 2022
: The study was conducted according to the guidelines of the Declaration of Helsinki. Also, this study has been approved by the research ethics committee of the University of the Western Cape, Cape Town, South Africa (HS17/6/15). Participants who agreed to participate after reading the information sheet, were requested to sign a consent form. Inform consent was obtained from all the participants. No participant is under 18 years old. Therefore, written informed consent from a parent or guardian for participants under 16 years old is not applicable.
: Not applicable.
: The authors declare that they have no competing interests.