@misc{indiciaec1ae235e1b6e,
  title = {Extra-amniotic pregnancy.},
  author = {J C Smulian and T Soffer},
  year = {1991},
  doi = {10.7863/jum.1991.10.9.528},
  url = {https://pubmed.ncbi.nlm.nih.gov/1920598/},
  note = {Source identifier: 1920598}
}