共 10 条
- [1] HIGGINS DA, 1972, B WORLD HEALTH ORGAN, V47, P531
- [3] JENSEN KE, 1961, AM REV RESPIR DIS, V83, P120
- [4] KUNDIN WD, 1970, NATURE, V228, P957
- [6] RUSS G, 1974, ACTA VIROL, V18, P299
- [7] PERSISTENCE OF HONG-KONG INFLUENZA-VIRUS VARIANTS IN PIGS [J]. SCIENCE, 1977, 196 (4297) : 1454 - 1455
- [9] SHORTRIDGE KF, 1979, J GEN VIROL, V44, P252
- [10] 1973, B WHO, V48, P199