title: Nasopharyngeal secretions as source of material for identification of respiratory viruses in infants and young children.
mesh_terms: D006801:Humans; D007223:Infant; D009305:Nasopharynx / Q000378:metabolism* / Q000382:microbiology; D012141:Respiratory Tract Infections / Q000175:diagnosis*; D014777:Virus Diseases / Q000175:diagnosis*