@misc{indiciaee726817bf7ea,
  title = {Ethical issues in randomised prevention trials.},
  author = {N Wald},
  year = {1993},
  doi = {10.1136/bmj.306.6877.563},
  url = {https://pubmed.ncbi.nlm.nih.gov/8461774/},
  note = {Source identifier: 8461774}
}