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2. The development of state and local surveillance systems;Graitcer;J Safety Res,1987
3. National Hospital Ambulatory Medical Care Survey: 1992 Emergency Department Summary;McCaig,1994
4. Northeastern Ohio Trauma Study: II. Injury rates by age, sex, and cause;Fife;Am J Public Health,1984
5. Injury surveillance: A method for recording E codes for injured ED patients;Ribbeck,1992