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Emergency Service, Hospital
Emergency Medical Services
Crowding
Physician's Practice Patterns
United States
Patient Admission
Triage
Outcome and Process Assessment (Health Care)
Retrospective Studies
Length of Stay
Time Factors
Prospective Studies
Quality of Health Care
Multivariate Analysis
Cohort Studies
Logistic Models
Cross-Sectional Studies
Emergency Medicine
Anti-Bacterial Agents
Pneumonia
Co-Publications
22
9
8
5
4
3
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