@misc{indiciae9e27295c8df2,
  title = {Contributing co-variables in clinical trials.},
  author = {S C Bayne and H O Heymann and J R Sturdevant and A D Wilder and T B Sluder},
  year = {1991},
  url = {https://pubmed.ncbi.nlm.nih.gov/1810336/},
  note = {Source identifier: 1810336}
}