1. School of Nursing, Queensland University of Technology and The Prince Charles Hospital Health Service District, c/o Prince Charles Hospital, Rode Road, Chermside, Queensland 4032, Australia
2. School of Medicine, Department of General Practice, Flinders University of South Australia, Bedford Park, SA, 5042, Australia
3. School of Nursing and Midwifery, Department of General Practice, Flinders University of South Australia, Bedford Park, SA, 5042, Australia
4. Flinders Centre for Epidemiology and Biostatistics, Department of General Practice, Flinders University of South Australia, Bedford Park, SA, 5042, Australia
5. School of Nursing, Queensland University of Technology, Victoria Park Road, Kelvin Grove, Queensland, 4059, Australia
6. Department of Rehabilitation and Aged Care, Repatriation Hospital, Daw Park, SA, 5041, Australia
7. Primary Health Care Research and Information Service, Department of General Practice, Flinders University of South Australia, Bedford Park, SA, 5042, Australia