title: Chronic steroid dependent asthma.
authors.forename: H M
authors.initials: HM
authors.lastname: Kipen
mesh_terms: D001249:Asthma / Q000188:drug therapy* / Q000209:etiology; D006801:Humans; D009784:Occupational Diseases / Q000188:drug therapy* / Q000209:etiology; D016273:Occupational Exposure; D013256:Steroids / Q000627:therapeutic use*
chemical_list: D013256:Steroids