TY  - BOOK
ED  - International Conference on Live Poliovirus Vaccines 
TI  - Papars presented and discussions held
PY  - 1959///
CY  - Washington D.C. : 
PB  - Pan American Sanitary Bureau. , 
KW  - Poliovirus Vaccine
KW  - prevention
KW  - Poliomyelitis
ER  -