1. Two Year Mortality in 760 Patients Transported by Helicopter Direct from the Road Accident Scene;Mackenzie;Amer. Surg.,1979
2. Helicopters: Extending the Prehospital System;Ulhorn;Medical Instr.,1982
3. Helicopter Supply and Evacuation;Evans;J. Soc. Occup. Med.,1976
4. Role of an Emergency Helicopter Transport Service in Rural Trauma;Urdaneta;Arch. Surg.,1987
5. Evaluation of the Helicopter in Aeromedical Transfers;Reddick;Aviat. Space Environ. Med.,1979