<style face="normal" font="default" size="100%">Observed association between antidepressant use and pneumonia risk was confounded by comorbidity measures</style>

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31<style face="normal" font="default" size="100%">Observed association between antidepressant use and pneumonia risk was confounded by comorbidity measures</style><style face="normal" font="default" size="100%">Observed association between antidepressant use and pneumonia risk was confounded by comorbidity measures</style>