Effectiveness of pneumococcal vaccine.
Gold
R
R
D000368:Aged; D001428:Bacterial Vaccines; D006801:Humans; D008875:Middle Aged; D022242:Pneumococcal Vaccines; D011018:Pneumonia, Pneumococcal / Q000175:diagnosis / Q000517:prevention & control*; D013296:Streptococcus pneumoniae / Q000276:immunology
D001428:Bacterial Vaccines; D022242:Pneumococcal Vaccines