7SLEMONS R D ,JOHNSON D C, OSBOR.NJ S, et al.Type-A influenza virus isolated from wild free-flying ducks in California [J].Avian Disaese, 1974,18(1 ) :119-124. 被引量：1
8REED K D,MEECEJ K,HENKELJ S, et akBirds,migration and emerging zoonoses: West Nile Virus, Lyme disease,influenza A and enteropathogens [J].Clin Med Res ,2003,1 (1) :5-12. 被引量：1
9CHEN H, SMITH GJ,ZHANG S Y,et al.Avian Flu :H5N1 virus outbreak in migratory waterfowl[J]. Nature, 2005 ( 436 ) : 191 - 192. 被引量：1
