@misc{indiciae48a638a375f6,
  title = {Ectopic pregnancy.},
  author = {P W Verco and C W Cook and S E Ogden},
  year = {1981},
  doi = {10.1111/j.1440-1673.1981.tb02222.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/7271625/},
  note = {Source identifier: 7271625}
}