[ 发表于: Journal of Veterinary Research ]
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Psittacine beak and feather disease virus in budgerigars and ring-neck parakeets in South Africa

2004

Albertyn, J. | Tajbhai, K.M. | Bragg, R.R. (Free State Univ., Bloemfontein (South Africa). Microbial, Biochemical and Food Biotechnology Dept.)

National Department of Agriculture, Agricultural Information Centre - South Africa