title: Expanded Programme on Immunization (EPI). Progress towards global poliomyelitis eradication, 1988-1997.
mesh_terms: D014943:Global Health; D006292:Health Priorities; D006801:Humans; D011051:Poliomyelitis / Q000453:epidemiology / Q000517:prevention & control*; D011159:Population Surveillance; D014611:Vaccination / Q000706:statistics & numerical data*; D014944:World Health Organization