@misc{indiciaed127538c7f5a,
  title = {Introduction.},
  author = {C S KEEFER},
  year = {1950},
  doi = {10.1111/j.1749-6632.1950.tb42152.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/14783328/},
  note = {Source identifier: 14783328}
}