@misc{indiciae2cfc21ebc2fc,
  title = {Do conception delays explain some changes in twinning rates?},
  author = {G Allen and J Schachter},
  doi = {10.1017/s1120962300024938},
  url = {https://pubmed.ncbi.nlm.nih.gov/5502042/},
  note = {Source identifier: 5502042}
}