Funding for this research was provided by:
Faculty of Health and Medicine, University of Newcastle Australia
Hunter New England Population Health
Received: 22 October 2017
Accepted: 1 March 2018
First Online: 12 March 2018
Ethics approval and consent to participate
: Ethical approval to conduct this study was obtained from Hunter New England Human Research Ethics Committee (ref. no. 06/07/26/4.04), University of Newcastle (ref. no. H-2008-0343) and New South Wales (NSW) Department of Education (SERAP 2012277).
: Not applicable
: The authors declare that they have no competing interests.
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