%0 Journal Article %T Antigenic, genetic, and pathogenic characterization of H5N1 highly pathogenic avian influenza viruses isolated from dead whooper swans (Cygnus cygnus) found in northern Japan in 2008 %A Okamatsu, Masatoshi %A Tanaka, Tomohisa %A Yamamoto, Naoki %A Sakoda, Yoshihiro %A Sasaki, Takashi %A Tsuda, Yoshimi %A Isoda, Norikazu %A Kokumai, Norihide %A Takada, Ayato %A Umemura, Takashi %A Kida, Hiroshi %J Virus Genes %V 41 %N 3 %P 351-357 %@ 0920-8569 %D 2010-09-17 %I Springer US %~ DeepDyve