title: [Meta-analysis: a new option in clinical research. Basic principles and a clinical example].
abstract: The authors present some basic concepts of meta-analysis, a process to evaluate and combine the results of conflicting studies. Authors illustrate the process by presenting a practical example in rheumatology.
authors.forename: M B
authors.initials: MB
authors.lastname: Ferraz
authors.forename: E
authors.initials: E
authors.lastname: Atra
mesh_terms: D002986:Clinical Trials as Topic; D005069:Evaluation Studies as Topic; D006801:Humans; D015201:Meta-Analysis as Topic; D009288:Naproxen / Q000627:therapeutic use*; D010003:Osteoarthritis / Q000188:drug therapy*; D010894:Piroxicam / Q000627:therapeutic use*
chemical_list: D010894:Piroxicam; D009288:Naproxen
vernacular_title: Metaanálise: nova opção em pesquisa clínica. Princípios básicos e um exemplo clínico.