im Artikel:
Characterization of Avian H5N1 Influenza Viruses from Poultry in Hong Kong;
Shortridge KF1, Zhou NN, Guan Y, Gao P, Ito T, Kawaoka Y, Kodihalli S, Krauss S, Markwell D, Murti KG, Norwood M, Senne D, Sims L, Takada A, Webster RG.
Virology. 1998 Dec 20;252(2):331-42.
https://www.ncbi.nlm.nih.gov/pubmed/9878612
