TY  - RPRT
TI  - Measles vaccination: studies in methods and cost reduction in developing countries.
AU  - J P Stanfield
AU  - P M Bracken
PY  - 1971
DO  - 10.1016/0035-9203(71)90046-0
UR  - https://pubmed.ncbi.nlm.nih.gov/5159138/
ID  - 5159138
ER  -