Effectiveness of pneumococcal vaccine.
Hak
E
E
van Essen
G A
GA
Grobbee
D E
DE
Verheij
T J
TJ
D000368:Aged; D001428:Bacterial Vaccines; D006801:Humans; D022242:Pneumococcal Vaccines; D011018:Pneumonia, Pneumococcal / Q000517:prevention & control*; D012307:Risk Factors; D013296:Streptococcus pneumoniae / Q000276:immunology
D001428:Bacterial Vaccines; D022242:Pneumococcal Vaccines