title: Interference by caffeine in polarization fluoroimmunoassays for theophylline in external quality assurance samples.
authors.affiliation: Cardiff Bioanalytical Services Ltd, Cardiff Medicentre, Heath Park, UK.
authors.forename: J F
authors.initials: JF
authors.lastname: Wicks
authors.forename: A
authors.initials: A
authors.lastname: Myring
authors.forename: J F
authors.initials: JF
authors.lastname: Wilson
mesh_terms: D016477:Artifacts; D002110:Caffeine / Q000032:analysis*; D016231:Fluorescence Polarization Immunoassay; D011786:Quality Control; D013806:Theophylline / Q000032:analysis*
chemical_list: D002110:Caffeine; D013806:Theophylline