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Authors
Du Plessis, D. E. http://orcid.org/0000-0002-4331-1728
Van Deventer, H.
Fernandez, P.
Van Der Merwe, A.
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Article History
Received: 11 November 2019
Accepted: 28 January 2020
First Online: 1 April 2020
Ethics approval and consent to participate
: Ethical clearance was obtained from the Health Research Ethics Committee of the University of Stellenbosch, ethics reference S16/07/118. Written informed consent was obtained from the participants.
: Not applicable.
: The authors declare that they have no competing interests.
