Funding for this research was provided by:
National Health and Medical Research Council (APP1121830)
Received: 8 September 2019
Accepted: 24 January 2020
First Online: 3 February 2020
Ethics approval and consent to participate
: The Women’s and Children’s Health Network (HREC/16/WCHN/190) and the University of Western Australia’s (RA/4/1/8825) Human Research Ethics Committee approved this study, and written informed consent was provided by all participants and by the parent or guardian for participants under 16 years old.
: Not applicable.
: The authors declare they have no competing interests.