005820000a22001810004500003000900000005001700009110004500026245004600071562002000117264004900137300000900186041000800195650004200203650002600245650005400271650004900325650002600374PH-MaWHO20241108112254.0  aWHO Global Polio Eradication Initiative.  aGlobal Polio eradication : progress 2000.  aWHO/POLIO/01.03  aGeneva : bWorld Health Organization,c2001.  a27p.  aeng  aPoliomyelitisxPrevention and control  aImmunization programs  aPoliovirus vaccine, OralxSupply and distribution  aVitamin A deficiencyxPrevention and control  aImmunization programs