Text and Data Mining valid from 2018-02-21
Received: 8 June 2016
Accepted: 7 February 2018
First Online: 21 February 2018
Ethics approval and consent to participate
: The Health Research Ethics Committees at Stellenbosch University (reference number: N13/04/056) approved the study.Participants were invited by e-mail to complete an online questionnaire (Additional file InternalRef removed). Their participation implied consent.
: Not applicable
: The authors declare that they have no competing interests.
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