Maltezou HC, Katerelos P, Mavrouli M, Lourida A, Routsias JG, Spanakis N, Maragos A, Tedoma A, Bassiakos Y, Koratzanis G, et al. Seroepidemiological study of pandemic influenza H1N1 following the 2009–2010 wave in Greece. Vaccine. 2011;29:6664–6669.
