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Authors
Cilliers, Karen https://orcid.org/0000-0001-7309-3277
Muller, Christo J. F. https://orcid.org/0000-0001-6821-2120
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Funding
Funding for this research was provided by:
National Research Foundation (116524)
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Article History
Received: 9 January 2020
Accepted: 23 March 2020
First Online: 1 April 2020
Compliance with Ethical Standards
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee (Health Research Ethics Committee, Stellenbosch University, S17/09/183) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: The authors declare that they have no conflict of interest.
: Opinions expressed and conclusions arrived at are those of the author and are not necessarily to be attributed to the NRF.
