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80 and over
2
Adolescent
2
Adult
2
Aged
Child
2
Female
2
Humans
2
Iceland
2
Infant
2
Male
2
Middle Aged
2
Newborn
2
Preschool
Age Distribution
1
Aging
1
Animals
1
Antibodies
1
Bacteria
1
Bacterial
1
Chlamydia Infections
1
Chlamydophila pneumoniae
1
Diarrhea
1
Feces
1
General Practice
1
Immunoglobulin G
1
Immunoglobulin M
1
Parasites
1
Prevalence
1
Prospective Studies
1
Questionnaires
1
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