@misc{indiciaefadaa946e5ca,
  title = {Vaccine delivery in developing countries.},
  author = {D R Hopkins},
  year = {1985},
  doi = {10.4269/ajtmh.1985.34.1013},
  url = {https://pubmed.ncbi.nlm.nih.gov/3834793/},
  note = {Source identifier: 3834793}
}