Overview 1. Definition of Accidental Trauma Accident, Unexpected, Injuries Physically and/or Psychologically Causes: physical, chemical, and biological factors 2. Main cause of mutilation and death in children globallyOverview 1. Definition of Accidental Trauma： Accident, Unexpected, Injuries Physically and/or Psychologically 1. Causes: physical, chemical, and biological factors 2. Main cause of mutilation and death in children globally