TY  - RPRT
TI  - Poliomyelitis: present epidemiological situation and vaccination problems.
AU  - C Mensi
AU  - F Pregliasco
PY  - 1998
DO  - 10.1128/cdli.5.3.278-280.1998
UR  - https://pubmed.ncbi.nlm.nih.gov/9605976/
ID  - 9605976
ER  -