1. Emergency care guidelines;American College of Emergency Physicians;Ann Emerg Med,1982
2. Hospital and prehospital resources for the optimal care of the injured patient;American College of Surgeons;Bull Am Coll Surg,1983
3. Provisional Guidelines for the Optimal Categorization of Emergency Medical Services;American Medical Association Commission on Emergency Medical Services,1981
4. Categorizing hospital capabilities;Boyd;Emergency Medical Services,1975
5. Regionalization of trauma patient care: The Illinois experience;Boyd;Surg Annu,1975