@misc{indiciae1be561444ffb,
  title = {A beltless tocodynamometer--a preliminary report.},
  author = {T Fukushima and D Ogunyemi and M Butler and E C Davidson},
  year = {1989},
  url = {https://pubmed.ncbi.nlm.nih.gov/2704511/},
  note = {Source identifier: 2704511}
}