TY  - RPRT
TI  - Immunization 1967-2006: implementation keeping pace with invention?
AU  - John D Grabenstein
PY  - 2007
DO  - 10.1345/aph.1h476
UR  - https://pubmed.ncbi.nlm.nih.gov/17119101/
ID  - 17119101
ER  -