@misc{indiciae1cf83a0471ec,
  title = {On adding a"fourth leg".},
  author = {W R Wright},
  year = {1977},
  doi = {10.1097/00004010-197700240-00002},
  url = {https://pubmed.ncbi.nlm.nih.gov/10305185/},
  note = {Source identifier: 10305185}
}