[Prologue].
de Paula Rodríguez Perera
Francisco
F
Hospital General Universitario Gregorio Marañón, Madrid, España.
D004636:Emergency Service, Hospital / Q000458:organization & administration*; D006785:Hospitals, University / Q000458:organization & administration*; D006801:Humans; D054527:Mass Casualty Incidents / Q000401:mortality / Q000706:statistics & numerical data*; D013030:Spain / Q000453:epidemiology