Japanische Kohortenstudie über 4 Jahre (2013 - 2017)

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Effectiveness of 23-Valent Pneumococcal Polysaccharide Vaccine against Invasive Pneumococcal Disease in Adults, Japan, 2013–2017 - PMC

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https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7510723/