@misc{indiciaebee6d9e4da49,
  title = {Graphic mnemonic for variable decelerations.},
  author = {A Chao},
  year = {1990},
  doi = {10.1016/0002-9378(90)91151-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/2403142/},
  note = {Source identifier: 2403142}
}