@misc{indiciaed1339d6c6251,
  title = {Ethics in epidemiological research.},
  author = {S Bradshaw},
  year = {1973},
  doi = {10.1136/bmj.1.5851.489-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/4689859/},
  note = {Source identifier: 4689859}
}