共 20 条
- [12] HOFFSIS GF, 1978, BOVINE PRACT, V13, P88
- [14] HOLICK SA, 1976, J BIOL CHEM, V251, P1025
- [15] MANSTON R, 1969, BR VET J, V120, P167
- [16] MERCK E, 1970, CLIN LABORATORY MED, P76
- [18] SACHS M, 1977, AM J VET RES, V38, P2039
- [20] WITTWER FG, 1978, VETERINARY RECORD, V103, P442