TY  - RPRT
TI  - Extraimmunization among US children.
AU  - S M Feikema
AU  - R M Klevens
AU  - M L Washington
AU  - L Barker
PY  - 2000
DO  - 10.1001/jama.283.10.1311
UR  - https://pubmed.ncbi.nlm.nih.gov/10714730/
ID  - 10714730
ER  -