@misc{indiciaeeb58371c584c,
  title = {Objective tocodynamometry identifies labor onset earlier than subjective maternal perception.},
  author = {R B Newman and B A Campbell and S L Stramm},
  year = {1990},
  url = {https://pubmed.ncbi.nlm.nih.gov/2234718/},
  note = {Source identifier: 2234718}
}