TY  - RPRT
TI  - [Effectiveness of influenza vaccination in healthy adults--a fourfold decrease in influenza morbidity during one influenza season].
AU  - R Chlíbek
AU  - J Beran
AU  - M Splino
PY  - 2002
UR  - https://pubmed.ncbi.nlm.nih.gov/11987579/
ID  - 11987579
ER  -