title: The potential value of negative studies.
authors.forename: Huai yong
authors.initials: Hy
authors.lastname: Cheng
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000544:Alzheimer Disease / Q000175:diagnosis / Q000188:drug therapy*; D005188:False Negative Reactions; D005189:False Positive Reactions; D005260:Female; D015577:Geriatric Assessment; D006707:Homes for the Aged; D006801:Humans; D008297:Male; D018696:Neuroprotective Agents / Q000009:adverse effects / Q000627:therapeutic use*; D009735:Nursing Homes; D048448:Phenylcarbamates / Q000009:adverse effects / Q000627:therapeutic use*; D016032:Randomized Controlled Trials as Topic; D000068836:Rivastigmine; D016896:Treatment Outcome
chemical_list: D018696:Neuroprotective Agents; D048448:Phenylcarbamates; D000068836:Rivastigmine