Funding for this research was provided by:
College of Medicine and Dentistry, James Cook University
Received: 5 November 2017
Accepted: 24 January 2019
First Online: 4 February 2019
Ethics approval and consent to participate
: Ethical approval from a Human Research Ethics Committee was not sought as this was a systematic review of the published literature.
: Authors PDS and RG have previous publications cited in this systematic literature review.
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