@misc{indiciae5b72b9f08a48,
  title = {Twin delivery.},
  author = {J F R Barrett and W Knox Ritchie},
  year = {2002},
  doi = {10.1053/beog.2002.0254},
  url = {https://pubmed.ncbi.nlm.nih.gov/11866496/},
  note = {Source identifier: 11866496}
}