Text and Data Mining valid from 2019-02-28
Received: 12 September 2018
Accepted: 1 February 2019
First Online: 28 February 2019
Ethics approval and consent to participate
: Ethical approval was obtained by the WA Department of Health Human Research Ethics Committee (Project #2014/50) and the WA Aboriginal Health Ethics Committee (Project 581). A waiver of informed consent was received to obtain access to de-identified linked data.
: Not applicable.
: The authors declare that they have no competing interests.
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