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Emergency Service, Hospital
Pain Measurement
Prospective Studies
Treatment Outcome
Cohort Studies
Time Factors
Sensitivity and Specificity
Severity of Illness Index
Pain
Acute Disease
Wounds and Injuries
Lead Poisoning
Migraine Disorders
Analgesics, Opioid
Morphine
Hydromorphone
Double-Blind Method
Infants
United States
New York City
Co-Publications
53
26
18
12
9
8
7
6
5
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