TY  - RPRT
TI  - Achievements, problems and perspectives of the Expanded Programme on Immunization.
AU  - A M Galazka
PY  - 1994
DO  - 10.1016/s0934-8840(11)80533-5
UR  - https://pubmed.ncbi.nlm.nih.gov/7696757/
ID  - 7696757
ER  -