Cook, Glynnis http://orcid.org/0000-0003-1702-479X
Kirkman, Wayne http://orcid.org/0000-0003-3773-6938
Clase, Rochelle
Steyn, Chanel http://orcid.org/0000-0002-0226-7302
Basson, Elaine
Fourie, Paul H. http://orcid.org/0000-0002-2210-6880
Moore, Sean D. http://orcid.org/0000-0002-4155-4187
Grout, Tim G. http://orcid.org/0000-0002-0734-3140
Carstens, Elma http://orcid.org/0000-0003-4789-2299
Hattingh, Vaughan http://orcid.org/0000-0001-8667-8901
Article History
Accepted: 13 September 2019
First Online: 24 October 2019
Compliance with ethical standards
: The authors declare that this research did not involve testing of either human or animal subjects.
: The authors declare that they have no conflict of interest.