@misc{indiciae4d0b6cc115ae,
  title = {Dysfunctional labor. II. Protracted active-phase dilatation in the nullipara.},
  author = {E A FRIEDMAN and M R SACHTLEBEN},
  year = {1961},
  url = {https://pubmed.ncbi.nlm.nih.gov/13702001/},
  note = {Source identifier: 13702001}
}