Expanded programme on immunization. Progress towards poliomyelitis eradication, WHO Eastern Mediterranean Region, 1988-1994.
D000352:Africa, Northern / Q000453:epidemiology; D006801:Humans; D007223:Infant; D008877:Middle East / Q000453:epidemiology; D011051:Poliomyelitis / Q000517:prevention & control*; D011055:Poliovirus Vaccine, Oral; D011159:Population Surveillance
D011055:Poliovirus Vaccine, Oral