TY  - GEN
AU  - Pyhälä,R
TI  - Protection by a polyvalent influenza vaccine and persistence of homologous and heterologous HI antibodies during a period of two epidemic seasons
SN  - 0022-1724
PY  - 1980///0514
KW  - Adult
KW  - Age Factors
KW  - Antibodies, Viral
KW  - isolation & purification
KW  - Disease Outbreaks
KW  - Female
KW  - Hemagglutination Inhibition Tests
KW  - Humans
KW  - Influenza A virus
KW  - immunology
KW  - Influenza Vaccines
KW  - Influenza, Human
KW  - Male
KW  - Middle Aged
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1017/s0022172400026735
ER  -