title: Comparative study of nasopharyngeal aspirate and nasal swab specimens for detection of influenza.
authors.affiliation: Department of Paediatrics, Turku University Hospital, FIN-20520 Turku, Finland. terho.heikkinen@utu.fi
authors.forename: T
authors.initials: T
authors.lastname: Heikkinen
authors.forename: A A
authors.initials: AA
authors.lastname: Salmi
authors.forename: O
authors.initials: O
authors.lastname: Ruuskanen
mesh_terms: D000293:Adolescent; D000956:Antigens, Viral / Q000032:analysis*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D009980:Influenza A virus / Q000276:immunology*; D009981:Influenza B virus / Q000276:immunology*; D007251:Influenza, Human / Q000175:diagnosis*; D008297:Male; D009297:Nasal Mucosa / Q000821:virology*; D009305:Nasopharynx / Q000821:virology*; D019095:Point-of-Care Systems; D011446:Prospective Studies; D013048:Specimen Handling / Q000379:methods
chemical_list: D000956:Antigens, Viral