Drupal-Bibcite0<style face="normal" font="default" size="100%">The effectiveness of revaccination with pneumococcal polysaccharide vaccine for preventing pneumococcal disease in older adults in England: A population-based cohort study</style><style face="normal" font="default" size="100%">The effectiveness of revaccination with pneumococcal polysaccharide vaccine for preventing pneumococcal disease in older adults in England: A population-based cohort study</style>