@misc{indiciae6920af3e5cb2,
  title = {Benefits, risks and costs of immunization programmes.},
  author = {J P Koplan},
  year = {1985},
  doi = {10.1002/9780470720912.ch5},
  url = {https://pubmed.ncbi.nlm.nih.gov/3921321/},
  note = {Source identifier: 3921321}
}