title: Polysaccharide pneumococcal vaccines.
authors.forename: Tom
authors.initials: T
authors.lastname: Jefferson
authors.forename: Vittorio
authors.initials: V
authors.lastname: Demicheli
mesh_terms: D006801:Humans; D018579:Patient Selection; D011008:Pneumococcal Infections / Q000517:prevention & control*; D022242:Pneumococcal Vaccines; D011135:Polysaccharides, Bacterial / Q000276:immunology; D017410:Practice Guidelines as Topic
chemical_list: D022242:Pneumococcal Vaccines; D011135:Polysaccharides, Bacterial