@misc{indiciae0ffc83674173,
  title = {Studies of nonrandom groups.},
  author = {J C Stanley},
  year = {1967},
  doi = {10.1126/science.155.3765.953},
  url = {https://pubmed.ncbi.nlm.nih.gov/6017391/},
  note = {Source identifier: 6017391}
}