TY  - GEN
ED  - World Health Organization Department of Vaccines and Biologicals
TI  - WHO vaccine-preventable diseases : monitoring system : 2001 global summary
SN  - WHO/V&B/01.34
PY  - 2001///
CY  - Geneva : 
PB  - World Health Organization
KW  - Epidemiologic surveillance
KW  - Methods
KW  - Communicable disease control
KW  - Immunization
KW  - Statistics
ER  -