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Article History

Received: 27 June 2018

Accepted: 24 March 2019

First Online: 4 April 2019

Ethics approval and consent to participate

: The research protocol of the study was approved by the Faculty of Health Sciences Human Research Ethics Committee at the University of Cape Town. All participants gave informed written consent and the anonymity and confidentiality of the research of all participants was maintained throughout the research process.

: Not applicable.

: The authors declare that they have no competing interests.

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