Received: 5 March 2019
Accepted: 6 August 2019
First Online: 19 November 2019
Ethics approval and consent to participate
: This study was approved by the Ethics Research Committee from the University of Zululand, South Africa, with ethical clearance number UZREC171110-030 PGM 2016/292. Interviewers were only conducted after consent forms had been signed indicating the willingness to participate freely.
: Not applicable.
: The authors declare that they have no competing interests.