Text and Data Mining valid from 2018-07-09
Received: 24 January 2018
Accepted: 28 June 2018
First Online: 9 July 2018
Ethics approval and consent to participate
: The study was conducted in accordance with the principles of the Helsinki declaration [CitationRef removed]. The Senate Higher Degrees committee and Research Committees of the University of the Western Cape, South Africa approved this study (Registration #13/6/18). A consent form was signed by all the participants.
: Not applicable.
: The authors declare that they have no competing interests.
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