Steroids in bronchitis.
D001991:Bronchitis / Q000188:drug therapy*; D002986:Clinical Trials as Topic; D005541:Forced Expiratory Volume; D006801:Humans; D008775:Methylprednisolone / Q000627:therapeutic use*; D011239:Prednisolone / Q000627:therapeutic use
D011239:Prednisolone; D008775:Methylprednisolone