Basic principles of protective medical support.
D004196:Disease Outbreaks; D004632:Emergency Medical Services / Q000458:organization & administration*; D004635:Emergency Medicine; D019353:Endemic Diseases; D005197:Famous Persons; D006801:Humans; D035846:Law Enforcement; D011322:Primary Prevention; D024382:Professional Role; D012306:Risk; D012637:Security Measures / Q000458:organization & administration*; D014195:Travel; D014481:United States; D014754:Violence