title: Why meta-analyses on the same topic lead to different conclusions?
authors.affiliation: Dipartimento di Medicina, Medicina Interna III, Università degli Studi di Milano, Ospedale L. Sacco, Milan, Italy.
authors.forename: Francesca
authors.initials: F
authors.lastname: Perego
authors.forename: Giovanni
authors.initials: G
authors.lastname: Casazza
mesh_terms: D003627:Data Interpretation, Statistical; D019317:Evidence-Based Medicine; D006801:Humans; D015201:Meta-Analysis as Topic; D011322:Primary Prevention / Q000379:methods*; D018570:Risk Assessment / Q000379:methods; D014481:United States