共 5 条
[1]
BULL LB, 1952, 14 INT VET C, V3, P39
[2]
HEMINGWAY RG, 1967, VET REC, V81, P695
[4]
Ross D. B., 1964, Veterinary Record, V32, P875
[5]
TODD J R, 1962, Vet Bull, V32, P573