title: [Serum theophylline levels in chronic obstructive pulmonary disease patients receiving uniphyllin].
authors.forename: S C
authors.initials: SC
authors.lastname: Chang
authors.forename: R P
authors.initials: RP
authors.lastname: Perng
mesh_terms: D000368:Aged; D003692:Delayed-Action Preparations; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000097:blood / Q000188:drug therapy*; D008297:Male; D008875:Middle Aged; D013806:Theophylline / Q000097:blood* / Q000627:therapeutic use*
chemical_list: D003692:Delayed-Action Preparations; D013806:Theophylline