Expanded programme on immunization (EPI). Progress towards poliomyelitis eradication.
D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D010679:Philippines; D011051:Poliomyelitis / Q000517:prevention & control*; D011055:Poliovirus Vaccine, Oral; D011635:Public Health Administration
D011055:Poliovirus Vaccine, Oral