@misc{indiciaea5275cc8162e,
  title = {Epidemiology research.},
  author = {Jon Nicholl and Mike Campbell},
  year = {2002},
  doi = {10.1016/s0140-6736(02)09476-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/12133686/},
  note = {Source identifier: 12133686}
}