title: [Systematic reviews and metaanalysis: are the best evidence?].
authors.affiliation: Unidad de Medicina Basada en Evidencia, Departamento de Medicina Interna, Pontifica Universidad Católica de Chile, Chile. lmletel@med.puc.cl
authors.forename: Luz María
authors.initials: LM
authors.lastname: Letelier
authors.forename: Juan J
authors.initials: JJ
authors.lastname: Manríquez
authors.forename: Gabriel
authors.initials: G
authors.lastname: Rada
mesh_terms: D019317:Evidence-Based Medicine / Q000592:standards; D006801:Humans; D015201:Meta-Analysis as Topic; D015203:Reproducibility of Results; D012196:Review Literature as Topic