title: Antiasthma drugs: key issues in clinical trial methodology.
authors.affiliation: Glaxo Inc. Research Institute, Research Triangle Park, North Carolina 27709.
authors.forename: R S
authors.initials: RS
authors.lastname: Sykes
authors.forename: D M
authors.initials: DM
authors.lastname: Cocchetto
mesh_terms: D000375:Aging; D001249:Asthma / Q000188:drug therapy* / Q000503:physiopathology; D002986:Clinical Trials as Topic; D005500:Follow-Up Studies; D006801:Humans; D008991:Monitoring, Physiologic; D010353:Patient Education as Topic; D010361:Patients; D010560:Personnel Selection; D010919:Placebos; D012107:Research Design; D012648:Self Care; D012720:Severity of Illness Index; D012727:Sex Characteristics; D013147:Spirometry
chemical_list: D010919:Placebos