@misc{indiciae06ae6b48c9c5,
  title = {National surveillance programmes.},
  author = {E M Cooke},
  year = {1988},
  doi = {10.1016/0195-6701(88)90165-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/2896745/},
  note = {Source identifier: 2896745}
}