1. The University of South Australia; School of Health Sciences; City East Campus, Frome Road Adelaide Australia 5001
2. Division of Population Health Sciences (PHS), Royal College of Surgeons in Ireland (RCSI); Emergency Care Research Unit (ECRU); 123 St. Stephen's Green Dublin 2 Ireland
3. Flinders University; College of Medicine and Public Health; Adelaide Australia
4. The Queen Elizabeth Hospital, Central Adelaide Local Health Network; Respiratory Medicine Unit; Adelaide Australia
5. Royal College of Surgeons in Ireland; Mercer Library; 23 St. Stephens Green, Dublin Ireland 2
6. The University of Queensland; Habit Research Group, School of Public Health; Public Health Building, Herston Road Herston Road Brisbane Queensland Australia 4030
7. Cork University Hospital; Cork Ireland
8. Our Lady's Children's Hospital Crumlin; National Children's Research Centre; Dublin Ireland 12