共 28 条
- [1] BACH S. J., 1958, Veterinary Record, V70, P473
- [3] Carlstrom B, 1939, ACTA MED SCAND, V101, P175
- [4] CARLSTROM BIRGER, 1950, VET REC, V62, P717
- [5] Carlstrom Birger, 1944, SKAND VET TIDSKR, V34, P222
- [6] FISHER RA, 1938, STATISTICAL METHODS
- [8] HOFLUND S, 1955, VET B WEYBRIDGE, V25, P187
- [9] HOLMES JR, 1951, J COMP PATHOL, V61, P14