@misc{indiciae6b70df39eb2f,
  title = {Closing volume and pregnancy.},
  author = {D R Bevan and A Holdcroft and L Loh and W G MacGregor and J C O'Sullivan and M K Sykes},
  year = {1974},
  doi = {10.1136/bmj.1.5896.13},
  url = {https://pubmed.ncbi.nlm.nih.gov/4808813/},
  note = {Source identifier: 4808813}
}