Received: 6 August 2018
Accepted: 9 January 2019
First Online: 6 February 2019
Ethics approval and consent to participate
: <b>1.</b> The study was approved by the Human Research Ethics Committee of the University of Cape Town South Africa reference no: [HREC:241/2007]: Written and verbal informed consent was obtained from all participants.2. Inclusion criteria [Included in methods section]: included written informed consent and translated into Isixhosa where necessary by an interpreter; if the participant did not speak English then an interpreter was obtained and verbally explained the informed consent].
: There are no images or videos relating to an individual person therefore consent for publication is not required.
: The authors declare that they have no competing interests.
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