共 37 条
[1]
ASHFAR A, 1989, J VIROL METHODS, V23, P253
[4]
BEZEK DM, 1992, J AM VET MED ASSOC, V201, P580
[5]
Bielefeldt Ohmann H, 1988, Acta Vet Scand, V29, P77
[7]
Brodersen BW, 1998, AM J VET RES, V59, P1423
[8]
BRODERSON BW, 1998, P ANN CONV AM ASS BO
[9]
BUBOIS WR, 2000, BOVINE PRACTITIONER, V34, P98