@misc{indiciaea1e07bc57c75,
  title = {Randomised surgical trials.},
  author = {S M Chang},
  year = {1993},
  doi = {10.1016/0140-6736(93)91977-t},
  url = {https://pubmed.ncbi.nlm.nih.gov/8105189/},
  note = {Source identifier: 8105189}
}