TY  - BOOK
ED  - World Health Organization.
TI  - WHO vaccine-preventable diseases : monitoring system : 2001 global summary
AV  - RA638 .V335 2002
PY  - 2001///
CY  - Geneva, Switzerland
PB  - World Health Organization
KW  - Vaccination
KW  - Statistics
KW  - Communicable diseases
N1  - Includes bibliographical references
ER  -