@misc{indiciae9c35949af09e,
  title = {Multiple-pregnancy duration.},
  author = {S Milewicz},
  year = {1974},
  doi = {10.1017/s1120962300024306},
  url = {https://pubmed.ncbi.nlm.nih.gov/4440423/},
  note = {Source identifier: 4440423}
}