title: [Purification and identification of avian influenza viruses causing mixed multi-infection].
authors.affiliation: Key Laboratory of Animal Infectious Diseases of Ministry of Agriculture, Yangzhou University, Yangzhou 225009, China. baofengqiu2008@yahoo.cn
authors.forename: Baofeng
authors.initials: B
authors.lastname: Qiu
authors.forename: Wujie
authors.initials: W
authors.lastname: Liu
authors.forename: Shunlin
authors.initials: S
authors.lastname: Hu
authors.forename: Yinghua
authors.initials: Y
authors.lastname: Tang
authors.forename: Daxin
authors.initials: D
authors.lastname: Peng
authors.forename: Xiufan
authors.initials: X
authors.lastname: Liu