title: Expanded programme on immunization. Poliomyelitis in 1987, 1988, and 1989--Part I.
mesh_terms: D006801:Humans; D007114:Immunization / Q000706:statistics & numerical data; D015994:Incidence; D007223:Infant; D011051:Poliomyelitis / Q000453:epidemiology* / Q000517:prevention & control; D011054:Poliovirus Vaccine, Inactivated / Q000008:administration & dosage*; D014944:World Health Organization
chemical_list: D011054:Poliovirus Vaccine, Inactivated