Funding for this research was provided by:
Australian Research Council (DP120100297)
National Health and Medical Research Council (APP1111925)
Received: 2 October 2018
Accepted: 24 May 2020
First Online: 3 June 2020
Ethics approval and consent to participate
: Ethical approval was obtained from the Human Research Ethics Committee of the Sydney Local Health District (HREC/12/CRGH/57). The requirement for informed patient consent was waived by the same Committee as the use of existing hospital record data for this study was deemed to carry no more than low risk to participants.
: Not applicable.
: The authors declare no competing interests.