Hulse, Webster, Russell et al.: "Molecular determinants within the surface proteins involved in the pathogenicity of H5N1 influenza viruses in chickens." in: Journal of virology, Vol. 78, Issue 18, pp. 9954-64, 2004 (PubMed).
Thompson, Shay, Weintraub et al.: "Mortality associated with influenza and respiratory syncytial virus in the United States." in: JAMA : the journal of the American Medical Association, Vol. 289, Issue 2, pp. 179-86, 2003 (PubMed).
Alexander: "A review of avian influenza in different bird species." in: Veterinary microbiology, Vol. 74, Issue 1-2, pp. 3-13, 2000 (PubMed).
Buxton Bridges, Katz, Seto et al.: "Risk of influenza A (H5N1) infection among health care workers exposed to patients with influenza A (H5N1), Hong Kong." in: The Journal of infectious diseases, Vol. 181, Issue 1, pp. 344-8, 2000 (PubMed).
Shortridge, Zhou, Guan et al.: "Characterization of avian H5N1 influenza viruses from poultry in Hong Kong." in: Virology, Vol. 252, Issue 2, pp. 331-42, 1999 (PubMed).