Rhinitis, sinusitis and bronchitis in children.
D000367:Age Factors; D001344:Autopsy; D001706:Biopsy; D001991:Bronchitis / Q000473:pathology*; D002648:Child; D006801:Humans; D012220:Rhinitis / Q000473:pathology*; D012852:Sinusitis / Q000473:pathology*