@misc{indiciae711c7e59c3af,
  title = {Difficulties in polio eradication.},
  author = {T J John},
  year = {2001},
  doi = {10.1016/s0140-6736(05)71283-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/11273094/},
  note = {Source identifier: 11273094}
}