Enhanced surveillance of influenza A(H1N1)v in Greece during the containment phase Lytras, T and Theocharopoulos, G and Tsiodras, S and Mentis, A and Panagiotopoulos, T and Bonovas, S and the influenza surveillance report group, Eurosurveillance, 14, 19275 (2009), https://doi.org/10.2807/ese.14.29.19275-en