@misc{indiciae3006d86dd9cd,
  title = {Perinatal mortality in twins.},
  author = {P P Nylander},
  year = {1979},
  doi = {10.1017/s000156600000893x},
  url = {https://pubmed.ncbi.nlm.nih.gov/555208/},
  note = {Source identifier: 555208}
}