@misc{indiciaecc1cfada23eb,
  title = {Monoamniotic twins: a retrospective controlled study.},
  author = {J A Tessen and F J Zlatnik},
  year = {1991},
  url = {https://pubmed.ncbi.nlm.nih.gov/2030852/},
  note = {Source identifier: 2030852}
}