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Authors
Nkosi, Vusumuzi
Rathogwa-Takalani, Funzani
Voyi, Kuku
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Funding
Funding for this research was provided by:
Mine Health Safety Council of South Africa (SIM 100801)
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Article History
Received: 14 October 2019
Accepted: 6 February 2020
First Online: 18 February 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Ethical approval (number: 235/2011) was obtained from the Research Ethics Committee of the Faculty of Health Sciences, University of Pretoria, Gauteng Department of Education (number: D2012/79) and North West Department of Education (number: 23-04-2012). The study was performed in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
: A verbal and written consent was obtained from all the individual participants included in the study.
