Factors affecting emergency room utilization.
D003153:Community Health Services; D004630:Emergencies; D004636:Emergency Service, Hospital / Q000706:statistics & numerical data*; D005191:Family Characteristics; D005194:Family Practice; D006801:Humans; D007348:Insurance, Health; D008505:Medical Staff, Hospital; D008913:Minority Groups; D009741:Nursing Staff, Hospital; D010361:Patients; D012923:Social Class; D012937:Social Mobility; D014478:Unemployment; D014505:Urban Population; D000078329:Workforce