<style face="normal" font="default" size="100%">Influenza-associated cardiovascular mortality in older adults in Beijing, China: A population-based time-series study</style>

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0<style face="normal" font="default" size="100%">Influenza-associated cardiovascular mortality in older adults in Beijing, China: A population-based time-series study</style><style face="normal" font="default" size="100%">Influenza-associated cardiovascular mortality in older adults in Beijing, China: A population-based time-series study</style>