@misc{indiciae3cca12cb833b,
  title = {Control groups appropriate for surgical interventions: ethical and practical issues.},
  author = {Morton B Brown},
  year = {2004},
  doi = {10.1053/j.gastro.2003.10.041},
  url = {https://pubmed.ncbi.nlm.nih.gov/14978655/},
  note = {Source identifier: 14978655}
}