@misc{indiciaec20595ba3566,
  title = {Controlled therapeutic trials.},
  author = {G A Higgins},
  year = {1971},
  doi = {10.1001/archsurg.1971.01350020070020},
  url = {https://pubmed.ncbi.nlm.nih.gov/4925512/},
  note = {Source identifier: 4925512}
}