<style face="normal" font="default" size="100%">Concurrent use of long-acting bronchodilators in COPD and the risk of adverse cardiovascular events</style>

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31<style face="normal" font="default" size="100%">Concurrent use of long-acting bronchodilators in COPD and the risk of adverse cardiovascular events</style><style face="normal" font="default" size="100%">Concurrent use of long-acting bronchodilators in COPD and the risk of adverse cardiovascular events</style>