@misc{indiciaec5fe3760f1e1,
  title = {Constriction ring dystocia.},
  author = {D PRYTZ},
  year = {1949},
  doi = {10.1111/j.1600-0447.1949.tb07346.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/15396338/},
  note = {Source identifier: 15396338}
}