共 23 条
- [3] BASKERVILLE A, 1971, THESIS QUB
- [4] BAXTER J. T., 1960, Veterinary Record, V72, P437
- [5] BOWDEN DH, PATHOLOGY ANNUAL, V5, P279
- [7] DARBYSHIRE JH, 1966, RES VET SCI, V7, P81
- [8] DAWSON PS, 1965, RES VET SCI, V6, P108
- [9] FRIEND SC, 1977, CAN J COMP MED, V41, P219