[The level of anti-poliomyeltis antibodies in the blood serum of children in Poznan and in the Poznan Region and its relation to preventive vaccinations].
D002648:Child; D006801:Humans; D011044:Poland; D023321:Poliovirus Vaccines; D044967:Serum; D014611:Vaccination
D023321:Poliovirus Vaccines
POLIOVIRUS VACCINE