Media type: E-Article Title: Trends in influenza vaccination coverage in Portugal from 1998 to 2010: effect of major pandemic threats Contributor: Pinto, Cátia Sousa; Nunes, Baltazar; Branco, Maria João; Falcão, José Marinho Published: Springer Science and Business Media LLC, 2013 Published in: BMC Public Health, 13 (2013) 1 Language: English DOI: 10.1186/1471-2458-13-1130 ISSN: 1471-2458 Origination: Footnote: Access State: Open Access