1. Clinical Services and Research Australia Red Cross Lifeblood West Melbourne Victoria Australia
2. Melbourne School of Population and Global Health University of Melbourne Melbourne Victoria Australia
3. Research and Development Australia Red Cross Lifeblood Kelvin Grove Queensland Australia
4. School of Psychology The University of Queensland Brisbane Queensland Australia
5. Department of Public Health and Primary Care University of Cambridge, National Institute for Health and Care Research Blood and Transplant Research Unit in Donor Health and Behaviour Cambridge UK
6. Faculty of Social Sciences and Business Studies University of Eastern Finland Kuopio Finland
7. Finnish Red Cross Blood Service Helsinki Finland