The effects of unemployment and inflation on hospital-based ambulatory care.
D000553:Ambulatory Care / Q000191:economics*; D004467:Economics; D004636:Emergency Service, Hospital / Q000706:statistics & numerical data; D006801:Humans; D010044:Outpatient Clinics, Hospital / Q000706:statistics & numerical data; D012189:Retrospective Studies; D014478:Unemployment; D014481:United States