Cilliers, Karen http://orcid.org/0000-0001-7309-3277
Muller, Christo J.F. http://orcid.org/0000-0001-6821-2120
Funding for this research was provided by:
National Research Foundation (116524)
Article History
Received: 9 January 2020
Accepted: 15 April 2020
First Online: 2 May 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: 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. Informed consent was obtained from the Legally Authorized Representative or from the next of kin.