title: [Theophylline in the treatment of asthma: is it still relevant?].
authors.forename: S
authors.initials: S
authors.lastname: Ringel
authors.forename: J
authors.initials: J
authors.lastname: Barr
authors.forename: Y
authors.initials: Y
authors.lastname: Katz
mesh_terms: D001249:Asthma / Q000188:drug therapy*; D006801:Humans; D013806:Theophylline / Q000627:therapeutic use*
chemical_list: D013806:Theophylline