"PolioPlus", a booster shot.
Sever
J L
JL
George Washington University Medical Center, Children's National Medical Center, Washington, DC 20010.
McQuestion
M J
MJ
Stucky
J H
JH
Rock
M
M
D002648:Child; D002675:Child, Preschool; D003906:Developing Countries; D006801:Humans; D007117:Immunization, Secondary; D007391:International Cooperation; D011055:Poliovirus Vaccine, Oral / Q000008:administration & dosage*
D011055:Poliovirus Vaccine, Oral