Nel, Chané http://orcid.org/0000-0003-4047-6356
Uys, André http://orcid.org/0000-0001-8250-7662
Robinson, Liam http://orcid.org/0000-0002-0549-7824
van Heerden, Willie F. P. http://orcid.org/0000-0003-2494-667X
Article History
Received: 3 July 2020
Accepted: 28 July 2020
First Online: 7 August 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This study was approved by the University of Pretoria, Faculty of Health Sciences Research Ethics Committee (Reference no.: 266/2020). All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation and with the Helsinki Declaration of 1964 and later versions.