TY  - RPRT
TI  - Combination vaccines: regulatory issues.
AU  - D K McClintock
PY  - 1995
DO  - 10.1111/j.1749-6632.1995.tb44435.x
UR  - https://pubmed.ncbi.nlm.nih.gov/7625662/
ID  - 7625662
ER  -