POLIOMYELITIS IMMUNIZATION--1963.
D006801:Humans; D011051:Poliomyelitis; D011055:Poliovirus Vaccine, Oral; D023321:Poliovirus Vaccines; D013223:Statistics as Topic; D014481:United States; D014611:Vaccination
D011055:Poliovirus Vaccine, Oral; D023321:Poliovirus Vaccines
POLIOVIRUS VACCINE; POLIOVIRUS VACCINE, ORAL; STATISTICS; UNITED STATES