1. NRMA CareFlight, N.S.W. Medical Retrieval Service, New South Wales and Intensive Care Unit, Royal Adelaide Hospital. Adelaide, South Australia, Australia
2. NRMA CareFlight, N.S.W. Medical Retrieval Service and Intensive Care Unit, Royal Adelaide Hospital.
3. Department of Anaesthesia and Intensive C.are, Royal Adelaide Hospital and University of Adelaide.
4. National Data Development and Standards Unit, Australian Institute of Health and Welfare, Canberra, ACT.