1. Cairns Clinical School, College of Medicine and Dentistry, James Cook University, Australia;
2. Older Persons and Subacute Services, Cairns and Hinterland Hospital and Health Service, Cairns, Queensland, Australia;
3. Mareeba Medical Clinic, Queensland, Australia;
4. Research and Development Unit, Primary Health Care and Dental Care, Southern Älvsborg County, Närhalsan, Västra Götaland Region, Sweden;
5. Department of Public Health and Community Medicine, Institute of Medicine, The Sahlgrenska Academy, University of Gothenburg, Sweden