title: Heterogeneity can impair the results of Cochrane meta-analyses despite accordance with statistical guidelines.
authors.forename: H J
authors.initials: HJ
authors.lastname: Malling
authors.forename: A B
authors.initials: AB
authors.lastname: Thomsen
authors.forename: J S
authors.initials: JS
authors.lastname: Andersen
mesh_terms: D001699:Biometry; D019317:Evidence-Based Medicine / Q000706:statistics & numerical data*; D006801:Humans; D007167:Immunotherapy / Q000706:statistics & numerical data*; D015201:Meta-Analysis as Topic; D017410:Practice Guidelines as Topic / Q000592:standards*; D015203:Reproducibility of Results; D006255:Rhinitis, Allergic, Seasonal / Q000276:immunology / Q000628:therapy*; D016896:Treatment Outcome