Received: 23 October 2017
Accepted: 9 April 2018
First Online: 16 April 2018
: Phumzile Hlongwa, BOH; BDS; M Dent (Ortho). Adjunct Professor/Chief Specialist, Department of Orthodontics and Paediatric Dentistry, School of Oral Health Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg.Laetitia C Rispel, PhD. Professor of Public Health and DST/NRF SARChI Chair, Centre for Health Policy, School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg
: The Human Research Ethics Committee (HREC) (Medical) of the University of the Witwatersrand in Johannesburg provided ethics approval. Permission was also obtained from the relevant health care authorities. We adhered to standard ethical procedures, which included study information sheets, voluntary participation, informed consent, anonymity of responses, and confidentiality. The participants consent was in written form.
: The authors declare that they have no competing interest.
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