Cite
HARVARD Citation
Armstrong, B. et al. (2004). Effect of influenza vaccination on excess deaths occurring during periods of high circulation of influenza: cohort study in elderly people. BMJ. 329 (7467), pp. 660-. [Online].
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Armstrong, B. et al. (2004). Effect of influenza vaccination on excess deaths occurring during periods of high circulation of influenza: cohort study in elderly people. BMJ. 329 (7467), pp. 660-. [Online].