title: Calculation of the natural history line in the long-term extension trial and the use of the 'intent-to-treat' (ITT) principle in donepezil treatment.
mesh_terms: D000544:Alzheimer Disease / Q000188:drug therapy / Q000503:physiopathology*; D015982:Bias; D018450:Disease Progression; D000077265:Donepezil; D006801:Humans; D007189:Indans / Q000627:therapeutic use; D018697:Nootropic Agents / Q000627:therapeutic use; D010880:Piperidines / Q000627:therapeutic use
chemical_list: D007189:Indans; D018697:Nootropic Agents; D010880:Piperidines; D000077265:Donepezil