BMJ · 1980 · 80 citations · 7 references
Life SciencesInfectious DiseasesMicrobiologyMedical MicrobiologyOutbreak InvestigationVirologyRespiratory DiseaseRespiratory InfectionsRespiratory Infectious DiseasesRespiratory Tract InfectionsViral EpidemiologyViral InfectionsRespiratory Viral InfectionsRespiratory VirusesViral Respiratory Infections
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