RT Journal Article SR Electronic(1) A1 Influenza team (ECDC), Collective YR 2007 T1 Human influenza A/H5N1 (“pre-pandemic”) vaccines: informing policy development in Europe JF Weekly releases (1997–2007) VO 12 IS 38 SP 3272 OP DO https://doi.org/10.2807/esw.12.38.03272-en UL https://www.eurosurveillance.org/content/10.2807/esw.12.38.03272-en