@misc{indiciaec94305d2f9f1,
  title = {Mass immunisation campaigns--do they solve the problem?},
  author = {P M Barron and E Buch and G Behr and N G Crisp},
  year = {1987},
  url = {https://pubmed.ncbi.nlm.nih.gov/3616833/},
  note = {Source identifier: 3616833}
}