@misc{indiciae6b3cc6f4c72f, title = {Measles vaccination: studies in methods and cost reduction in developing countries.}, author = {J P Stanfield and P M Bracken}, year = {1971}, doi = {10.1016/0035-9203(71)90046-0}, url = {https://pubmed.ncbi.nlm.nih.gov/5159138/}, note = {Source identifier: 5159138} }