@misc{indiciae72b7757cc395,
  title = {Two voluntary mass immunization programs using Sabin oral vaccine.},
  author = {R B JOHNS and S FARNSWORTH and H THOMPSON and F BRADY},
  year = {1963},
  doi = {10.1001/jama.1963.03700030047010},
  url = {https://pubmed.ncbi.nlm.nih.gov/13957851/},
  note = {Source identifier: 13957851}
}