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Table 2 ECOS (Em Casa Observamos Saúde/ Observing Health at Home ) samples survey completion dates

From: Trends in influenza vaccination coverage in Portugal from 1998 to 2010: effect of major pandemic threats

Survey/season Year ECOS sample formed Completion date
1998/1999 1998 May 1999
1999/2000 1998 February 2000
2001/2002 1998 July 2002
2002/2003 2002 May 2003
2003/2004 2002 March 2004
2004/2005 2002 April 2005
2005/2006 2002 May 2006
2006/2007 2006 February 2007
2007/2008 2006 February 2008
2008/2009 2006 January 2009
2009/2010 2010 April 2010
2010/2011 2010 February 2011