Naudé, Luzelle
Jordaan, Jacques
Bergh, Luna
Article History
First Online: 25 April 2017
Compliance with Ethical Standards
:
: The authors have no conflict of interest.
: All procedures performed in this study (involving human participants) were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.