Childhood immunization registries.
Orenstein
W A
WA
Cordero
J F
JF
Willis
B M
BM
D002675:Child, Preschool; D003219:Confidentiality; D006801:Humans; D007114:Immunization / Q000706:statistics & numerical data*; D017589:Immunization Programs; D007223:Infant; D007256:Information Systems; D012042:Registries