Global polio eradication initiative.
Heymann
David
D
D014943:Global Health; D006266:Health Education / Q000458:organization & administration; D006801:Humans; D032541:Mass Vaccination; D011051:Poliomyelitis / Q000517:prevention & control*; D023321:Poliovirus Vaccines / Q000008:administration & dosage*; D014944:World Health Organization / Q000458:organization & administration
D023321:Poliovirus Vaccines