共 6 条
[2]
ALEXANDER DJ, 1986, 1985 P S AC VIR DIS, P52
[3]
Beard C. W., 1984, Diseases of poultry, P452
[5]
TUMOVA B, 1979, ACTA VIROL, V23, P504
[6]
1980, B WHO, V58, P585