00683nas a2200277   4500000000100000008004100001260000900042653001000051653003300061653002500094653001800119653001100137653001700148653003000165653003000195100001800225700001100243700001300254700001400267700001500281700001100296245006600307300001100373490000700384022001400391       1988                            d  c198810aChild10aCommunicable Disease Control10aDeveloping countries10aGlobal health10aHumans10aImmunization10aInternational Cooperation10aWorld Health Organization1 aHenderson R H1 aKeja J1 aHayden G1 aGalazka A1 aClements J1 aChan C00aImmunizing the children of the world: progress and prospects.  a535-430 v66  a0042-9686