title: [The phenomenon of different study results. Were the research participants too old?].
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Röhm
mesh_terms: D000367:Age Factors; D000368:Aged; D000544:Alzheimer Disease / Q000473:pathology / Q000517:prevention & control*; D015982:Bias; D001921:Brain / Q000187:drug effects / Q000473:pathology; D002986:Clinical Trials as Topic / Q000706:statistics & numerical data*; D020441:Ginkgo biloba; D006801:Humans; D018579:Patient Selection; D008517:Phytotherapy; D010936:Plant Extracts / Q000627:therapeutic use*; D016896:Treatment Outcome
chemical_list: D010936:Plant Extracts