TY  - RPRT
TI  - Measles immunisation level.
AU  - J D Middleton
AU  - G T Pollock
PY  - 1984
DO  - 10.1016/s0140-6736(84)90103-x
UR  - https://pubmed.ncbi.nlm.nih.gov/6140478/
ID  - 6140478
ER  -