title: Pneumococcal vaccines: confronting the confounders.
authors.affiliation: Cochrane Vaccines Field, 00061 Anguillara Sabazia, Rome, Italy. jefferson.tom@gmail.com
authors.forename: Tom
authors.initials: T
authors.lastname: Jefferson
mesh_terms: D015986:Confounding Factors, Epidemiologic; D019317:Evidence-Based Medicine; D006287:Health Planning Guidelines; D006291:Health Policy; D006801:Humans; D015201:Meta-Analysis as Topic; D018579:Patient Selection; D022242:Pneumococcal Vaccines / Q000276:immunology*; D012107:Research Design; D012196:Review Literature as Topic; D014944:World Health Organization
chemical_list: D022242:Pneumococcal Vaccines