Complications in chest pain patients in crowded EDs.
D002637:Chest Pain / Q000150:complications*; D003441:Crowding; D004636:Emergency Service, Hospital / Q000458:organization & administration*; D006784:Hospitals, Teaching; D006801:Humans; D009203:Myocardial Infarction / Q000150:complications; D019982:Organizational Case Studies; D010414:Pennsylvania; D011785:Quality Assurance, Health Care