title: Pneumococcal vaccine may reduce heart attack risk.
mesh_terms: D000368:Aged; D002170:Canada / Q000453:epidemiology; D006760:Hospitalization; D006801:Humans; D008875:Middle Aged; D009203:Myocardial Infarction / Q000453:epidemiology* / Q000517:prevention & control*; D022242:Pneumococcal Vaccines / Q000627:therapeutic use*; D018570:Risk Assessment; D012307:Risk Factors
chemical_list: D022242:Pneumococcal Vaccines