TY  - RPRT
TI  - [Heading for systematic flu vaccination?].
AU  - Raúl Ortiz de Lejarazu
AU  - José María Eiros
PY  - 2003
DO  - 10.1016/s0025-7753(03)73696-3
UR  - https://pubmed.ncbi.nlm.nih.gov/12646111/
ID  - 12646111
ER  -