title: Violation of homogeneity: a methodologic issue in the use of data mining tools.
authors.forename: David
authors.initials: D
authors.lastname: Lilienfeld
authors.forename: Savian
authors.initials: S
authors.lastname: Nicholas
authors.forename: Daniel
authors.initials: D
authors.lastname: Macneil
authors.forename: Olga
authors.initials: O
authors.lastname: Kurjatkin
authors.forename: Thomas
authors.initials: T
authors.lastname: Gelardin
mesh_terms: D016907:Adverse Drug Reaction Reporting Systems / Q000706:statistics & numerical data*; D001499:Bayes Theorem; D016208:Databases, Factual; D006801:Humans; D016571:Neural Networks, Computer; D013223:Statistics as Topic / Q000379:methods*; D014944:World Health Organization