title: What we can learn from open-label extensions of randomized clinical trials.
authors.forename: Jeffrey L
authors.initials: JL
authors.lastname: Cummings
mesh_terms: D000544:Alzheimer Disease / Q000188:drug therapy; D004311:Double-Blind Method; D004341:Drug Evaluation; D018691:Excitatory Amino Acid Antagonists / Q000627:therapeutic use; D006801:Humans; D008559:Memantine / Q000627:therapeutic use; D016032:Randomized Controlled Trials as Topic / Q000379:methods*; D012107:Research Design; D016896:Treatment Outcome
chemical_list: D018691:Excitatory Amino Acid Antagonists; D008559:Memantine