@misc{indiciae7928d3186b58,
  title = {Oestrogens and the unfavourable cervix.},
  author = {K Hillier and R Wallis},
  doi = {10.1016/s0140-6736(78)92012-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/82873/},
  note = {Source identifier: 82873}
}