Ethics approval and consent to participate
This study was approved by the Human Research Ethics Committee of the University of New South Wales Sydney (HC190143), with reciprocal ethics granted by the La Trobe University Human Research Ethics Committee (HC190143). Written informed consent to participate in this study was provided by the participating GPs. All procedures performed in this study involving human participants were in accordance with the ethical standards of the National Statement on Ethical Conduct in Human Research (2007) and the relevant Human Research Ethics Committees, and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.