title: Virological investigation of hospitalized cases of pseudocroup and acute laryngotracheobronchitis.
mesh_terms: D000256:Adenoviridae / Q000302:isolation & purification; D001991:Bronchitis / Q000209:etiology*; D002648:Child; D002675:Child, Preschool; D046508:Culture Techniques; D004770:Enterovirus / Q000302:isolation & purification; D006801:Humans; D006814:Hungary; D007223:Infant; D007231:Infant, Newborn; D007827:Laryngitis / Q000209:etiology*; D012136:Respiratory Syncytial Viruses / Q000302:isolation & purification; D012141:Respiratory Tract Infections / Q000209:etiology*; D018108:Respirovirus / Q000302:isolation & purification; D012698:Serologic Tests; D014136:Tracheitis / Q000209:etiology*; D014777:Virus Diseases / Q000175:diagnosis*