Impact of pneumococcal polysaccharide vaccine on incidence and mortality after pneumonia in adults aged ≥60 years—a population-based retrospective cohort study
2018 ◽
Vol 24
(5)
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pp. 500-504
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Keyword(s):
1994 ◽
Vol 121
(8)
◽
pp. 560
◽
Keyword(s):