共 7 条
- [3] JOHNSON RH, 1971, J AM VET MED ASSOC, V158, P876
- [5] KAPIKIAN AZ, 1973, P SOC EXP BIOL MED, V142, P874
- [6] PAVER WK, 1973, LANCET, V1, P237
- [7] Tinsley T. W., 1973, Journal of General Virology, V20, P7, DOI 10.1099/0022-1317-20-Supplement-7