1. School of Medicine and Public Health, University of Newcastle , University Drive, Callaghan , Australia
2. Royal Australian College of General Practitioners GP Training Research Department , 20 McIntosh Drive, Mayfield West, NSW 2304 , Australia
3. Faculty of Medicine, General Practice Clinical Unit, University of Queensland , Level 8 Health Sciences Building, Royal Brisbane & Women’s Hospital, Brisbane, QLD , Australia
4. Hunter Medical Research Institute, Clinical Research Design, IT and Statistical Support Unit (CReDITSS) , New Lambton Heights , Australia
5. Eastern Victoria General Practice Training, Regional Training Organisation , Hawthorn, Victoria , Australia
6. Department of General Practice and Primary Health Care, University of Melbourne , Berkeley Street, Carlton, Victoria , Australia
7. School of Rural Health, Faculty of Medicine, Nursing and Health Sciences, Monash University , Clayton, Victoria , Australia