@misc{indiciaed73b1948b883,
  title = {How to do a simple epidemiological study. I. Planning.},
  author = {T J Bowker},
  year = {1996},
  doi = {10.1016/s0167-5273(96)02766-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/9013262/},
  note = {Source identifier: 9013262}
}