Identification of a dominant epitope in the hemagglutinin of an Asian highly pathogenic avian influenza H5N1 clade 1 virus by selection of escape mutants., Ferreira, Helena Lage, Lambrecht Bénédicte, Van Borm Steven, Torrieri-Dramard Lea, Klatzmann David, Bellier Bertrand, and van den Berg Thierry , Avian Dis, 2010 Mar, Volume 54, Issue 1 Suppl, p.565-71, (2010)