Funding for this research was provided by:
Department of Health, Australian Government
Text and Data Mining valid from 2018-06-04
Received: 30 July 2017
Accepted: 12 April 2018
First Online: 4 June 2018
Ethics approval and consent to participate
: The study protocol was approved by the Human Research Ethics Committee of the University of Melbourne (Ethics ID 1136812.3). All participants provided written consent to participate in the study.
: The authors declare that they have no competing interests.