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Adolescent
1
Adult
1
Age Distribution
1
Aged
1
Antibodies
1
Bacterial
1
Blood Donors
1
Cohort Studies
1
Female
Humans
1
Iceland
1
Incidence
1
Male
1
Middle Aged
1
Mycoplasma
1
Mycoplasma pneumoniae
1
Pneumonia
1
Retrospective Studies
1
Risk Factors
Seasons
1
Seroepidemiologic Studies
1
Serologic Tests
1
Sex Distribution
1
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