Poliomyelitis eradication :
Poliomyelitis eradication : field guide.
- 3rd ed.
- Washington, D.C. : Pan American Health Organization, 2006.
- x, 75 p.
- Scientific and technical publication (Pan American Health Organization) ; no. 607 .
eng spa.
WHODOC
9275116075
Poliomyelitis--epidemiology--prevention and control.
Epidemiologic surveillance.
Mass immunization.
Poliovirus vaccines.
Guidelines.
WC 556 2006PO
eng spa.
WHODOC
9275116075
Poliomyelitis--epidemiology--prevention and control.
Epidemiologic surveillance.
Mass immunization.
Poliovirus vaccines.
Guidelines.
WC 556 2006PO