Poliovirus vaccination.
Ramsay
M
M
Begg
N
N
Brown
D
D
Megson
B
B
D002675:Child, Preschool; D006801:Humans; D007115:Immunization Schedule; D007117:Immunization, Secondary; D007223:Infant; D011051:Poliomyelitis / Q000517:prevention & control; D011055:Poliovirus Vaccine, Oral; D006113:United Kingdom; D014611:Vaccination
D011055:Poliovirus Vaccine, Oral