@misc{indiciae2916fcfc6bd1,
  title = {Sinusoidal fetal heart rate.},
  author = {R Erkkola and P Kilkku and M Grönroos},
  year = {1983},
  doi = {10.1016/0028-2243(83)90290-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/6884564/},
  note = {Source identifier: 6884564}
}