共 15 条
- [1] ARIKAWA J, 1979, ACTA VIROL, V23, P508
- [3] NARDELLI L, 1978, ZBL VET MED B, V25, P853
- [5] POPOVICI V, 1972, ACTA VIROL, V16, P363
- [6] SANDOW G, 1970, MH VET MED, V25, P321
- [7] SHORTRIDGE KF, 1979, LANCET, V1, P439
- [9] PERSISTENCE OF HONG-KONG INFLUENZA-VIRUS VARIANTS IN PIGS [J]. SCIENCE, 1977, 196 (4297) : 1454 - 1455