@misc{indiciae9c48a99bc104,
  title = {[Extrauterine pregnancy].},
  author = {I Shŭrkalef and A Katsulov and I Penev},
  year = {1969},
  url = {https://pubmed.ncbi.nlm.nih.gov/5398213/},
  note = {Source identifier: 5398213}
}