title: Letter: Cot death.
mesh_terms: D001990:Bronchiolitis, Viral / Q000150:complications / Q000453:epidemiology; D004739:England; D006801:Humans; D007223:Infant; D009660:Northern Ireland; D009976:Orthomyxoviridae Infections / Q000150:complications; D013398:Sudden Infant Death / Q000453:epidemiology / Q000209:etiology