title: Is the pneumococcal polysaccharide vaccine effective in preventing pneumonia?
authors.forename: Angel
authors.initials: A
authors.lastname: Vila-Corcoles
mesh_terms: D000328:Adult; D006801:Humans; D022242:Pneumococcal Vaccines / Q000592:standards*; D011018:Pneumonia, Pneumococcal / Q000517:prevention & control*; D014611:Vaccination
chemical_list: D022242:Pneumococcal Vaccines