Progress towards global poliomyelitis eradication, as of May 1999.
D014943:Global Health; D006285:Health Planning; D006292:Health Priorities; D006801:Humans; D007114:Immunization; D015994:Incidence; D011051:Poliomyelitis / Q000453:epidemiology* / Q000517:prevention & control*; D011159:Population Surveillance