Trends in US emergency department visits.
Francisco
F
Epelde
D004636:Emergency Service, Hospital / Q000706:statistics & numerical data*; D006297:Health Services Accessibility; D006801:Humans; D017057:Medically Uninsured / Q000706:statistics & numerical data; D009313:National Health Programs / Q000458:organization & administration*; D013030:Spain; D014481:United States; D019472:Universal Health Insurance