POLIOMYELITIS--VIRGINIA 1963.
D001699:Biometry; D011051:Poliomyelitis; D011055:Poliovirus Vaccine, Oral; D023321:Poliovirus Vaccines; D013223:Statistics as Topic; D014768:Virginia
D011055:Poliovirus Vaccine, Oral; D023321:Poliovirus Vaccines
POLIOMYELITIS; POLIOVIRUS VACCINE; POLIOVIRUS VACCINE, ORAL; STATISTICS; VIRGINIA