Text and Data Mining valid from 2019-04-02
Received: 7 December 2017
Accepted: 19 March 2019
First Online: 2 April 2019
Ethics approval and consent to participate
: Ethics approval was from the University Newcastle Human Research Ethics Committee (Protocol Number H-2015-0392, 18 December 2015). All participants gave their informed consent in writing after having been provided with a participant information statement.
: Prior to giving consent, participants were informed that results of this study may be the subject of journal articles or conference presentations.
: The authors declare that there are no competing interests.
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