@misc{indiciae2b4e23439078,
  title = {180 day barrier: issues and concerns.},
  author = {J Leonard},
  year = {1981},
  doi = {10.1177/001440298104700402},
  url = {https://pubmed.ncbi.nlm.nih.gov/6451431/},
  note = {Source identifier: 6451431}
}