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Anti-Bacterial Agents
4
Child
4
Iceland
3
Acute Disease
2
Female
2
Follow-Up Studies
2
Humans
2
Male
2
Middle Ear Ventilation
2
Parents
2
Penicillin Resistance
2
Preschool
2
Questionnaires
2
Streptococcus pneumoniae
2
Adult
1
Bacterial
1
Comparative Study
1
Confidence Intervals
1
Cross-Sectional Studies
1
Drug
1
Drug Resistance
1
Drug Utilization
1
Erythromycin
1
Iceland/epidemiology
1
Infant
1
Nasopharynx
1
Nose
1
Odds Ratio
1
Otitis Media
1
Otitis Media with Effusion
1
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