title: Polysaccharide pneumococcal vaccination: new evidence.
authors.forename: A J
authors.initials: AJ
authors.lastname: Hall
mesh_terms: D011008:Pneumococcal Infections / Q000517:prevention & control*; D022242:Pneumococcal Vaccines; D029424:Pulmonary Disease, Chronic Obstructive / Q000382:microbiology*
chemical_list: D022242:Pneumococcal Vaccines