TY  - RPRT
TI  - Immunization: cover for all?
AU  - D M Roberton
PY  - 1984
DO  - 10.1111/j.1440-1754.1984.tb00050.x
UR  - https://pubmed.ncbi.nlm.nih.gov/6466233/
ID  - 6466233
ER  -