title: Pneumococcal seroepidemiology in Turkey.
authors.forename: Hakan
authors.initials: H
authors.lastname: Erdem
authors.forename: Burcin
authors.initials: B
authors.lastname: Sener
mesh_terms: D002675:Child, Preschool; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D011008:Pneumococcal Infections / Q000453:epidemiology*; D016036:Seroepidemiologic Studies; D014421:Turkey / Q000453:epidemiology