du Toit, Nicola
van Coller, Riaan http://orcid.org/0000-0001-6250-363X
Anderson, David G. http://orcid.org/0000-0002-2831-6424
Carr, Jonathan http://orcid.org/0000-0002-7677-426X
Bardien, Soraya http://orcid.org/0000-0002-3508-3438
Funding for this research was provided by:
South African National Research Foundation (Grant Number: 106052)
South African Medical Research Council (Self-Initiated Research Grant)
Article History
Received: 3 June 2019
Accepted: 27 August 2019
First Online: 6 September 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The Health Research Ethics Committee at Stellenbosch University (Protocol 2002/C059) approved this study. All procedures performed on human participants were in accordance with the ethical standards of the institutional and national research committees and with the 1964 Helsinki declaration and its later amendments.