Citation 1327
Webster RG, Shortridge KF, and Kawaoka Y. 1997. Influenza: interspecies transmission and emergence of new pandemics. Federation of European Microbiological Societies Immunology and Medical Microbiology 18:275-9.
http://birdfluexposed.com/resources/webster275.pdf.
http://birdfluexposed.com/resources/webster275.pdf.