TY  - GEN
AU  - van Loon,A M
AU  - van der Avoort,H G
TI  - ['Open season in the hunt for poliovirus' (continued)]
SN  - 0028-2162
PY  - 1998///0608
KW  - Child
KW  - Child, Preschool
KW  - Epidemiologic Methods
KW  - Humans
KW  - Infant
KW  - Poliomyelitis
KW  - epidemiology
KW  - Poliovirus Vaccine, Inactivated
KW  - Poliovirus Vaccine, Oral
KW  - Population Surveillance
KW  - Vaccination
KW  - methods
N1  - Publication Type: English Abstract; Journal Article; Review
ER  -