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Expansion of seasonal influenza vaccination in the Americas.
Ropero-Alvarez AM, Kurtis HJ, Danovaro-Holliday MC, Ruiz-Matus C, Andrus JK. Ropero-Alvarez AM, et al. Among authors: kurtis hj. BMC Public Health. 2009 Sep 24;9:361. doi: 10.1186/1471-2458-9-361. BMC Public Health. 2009. PMID: 19778430 Free PMC article.