Traditional rulers in northern Nigeria call for halt to polio vaccination.
Raufu
Abiodun
A
D004340:Drug Contamination; D006801:Humans; D009549:Nigeria; D011051:Poliomyelitis / Q000517:prevention & control*; D023321:Poliovirus Vaccines / Q000592:standards*; D014611:Vaccination
D023321:Poliovirus Vaccines