共 11 条
- [1] DOWDLE WR, 1969, B WORLD HEALTH ORGAN, V41, P419
- [3] Francis T., 1960, P AM PHILOS SOC, V104, P572
- [4] OVERVIEW OF CLINICAL-TRIALS OF INFLUENZA VACCINES, 1976 [J]. JOURNAL OF INFECTIOUS DISEASES, 1977, 136 : S425 - S428
- [7] MASUREL N, 1976, LANCET, V2, P244