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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