Received: 23 August 2021
Accepted: 25 May 2022
First Online: 31 May 2022
: The project was approved as a quality assurance activity by the Quality and Safety Office, under the ethical framework overseen by the South Western Sydney Local Health District Human Research Ethics Committee (CT01_2017, 1/07/2017). As a retrospective quality improvement audit, a waiver of individual patient consent was approved by the SWSLHD HREC, and this study was conducted in accordance with the Declaration of Helsinki.
: Not applicable.
: The authors have no competing interests to declare.