@misc{indiciae573517836d95,
  title = {Screening for twin pregnancy.},
  author = {L Jovanovic and R Landesman and B B Saxena},
  year = {1977},
  doi = {10.1126/science.910156},
  url = {https://pubmed.ncbi.nlm.nih.gov/910156/},
  note = {Source identifier: 910156}
}