title: Mass Gathering Medical Care.
mesh_terms: D003441:Crowding / Q000523:psychology*; D004630:Emergencies / Q000453:epidemiology; D004632:Emergency Medical Services / Q000592:standards*; D004635:Emergency Medicine / Q000458:organization & administration*; D005260:Female; D005392:First Aid; D006801:Humans; D008297:Male; D008399:Mass Behavior; D017410:Practice Guidelines as Topic / Q000592:standards*; D014481:United States