@misc{indiciae6a180a18e951,
  title = {Doppler--the fetal circulation.},
  author = {K L Reed},
  year = {1997},
  doi = {10.1097/00003081-199712000-00009},
  url = {https://pubmed.ncbi.nlm.nih.gov/9429789/},
  note = {Source identifier: 9429789}
}