1. Sydney Medical School The University of Sydney Sydney Australia
2. Department of Surgery, Westmead Research Centre for Evaluation of Surgical Outcomes Westmead Hospital Westmead Australia
3. General Practice / Family medicine, School of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
4. Research, Education, Development & Innovation Primary Health Care Region Västra Götaland Götaland Sweden
5. Primary Health Care Clinic for Homeless People Gothenburg Sweden
6. College of Medicine & Dentistry James Cook University Cairns Queensland Australia