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Authors
Enhörning, Sofia https://orcid.org/0000-0001-8895-0534
Malan, Léone
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Article History
Received: 16 January 2019
Accepted: 1 June 2019
First Online: 22 June 2019
Compliance with ethical standards
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: The authors declare that they have no conflict of interest.
: Ethical approval for the study was obtained from the Ethics Review Board of the North-West University, Potchefstroom Campus, South Africa. All procedures performed were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.
