@misc{indiciaeb05f93e47f8d,
  title = {Selection bias and randomized consent designs.},
  author = {E Brunner and R Hilgers and N Neumann},
  year = {1986},
  doi = {10.1016/0021-9681(86)90031-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/3949948/},
  note = {Source identifier: 3949948}
}