共 33 条
[21]
RICE DA, 1986, VET REC, V119, P571
[22]
SERFASS RE, 1975, NATURE LONDON, V225, P840
[23]
SHEFFY BE, 1979, FED PROC, V38, P2139
[25]
TIEGE J, 1977, ACTA VET SCANDINAVIA, V18, P384
[26]
TIEGE J, 1982, RES VET SCI, V32, P95
[28]
TURNER RJ, 1985, VET IMMUNOL IMMUNOP, V8, P119, DOI 10.1016/0165-2427(85)90115-1
[30]
WHITE DJ, 1972, VET REC, V90, P314