Polio eradication and after.
Madeley
C R
CR
D006801:Humans; D011051:Poliomyelitis / Q000517:prevention & control*; D017955:Poliovirus / Q000276:immunology* / Q000472:pathogenicity*; D023321:Poliovirus Vaccines; D014774:Virulence
D023321:Poliovirus Vaccines