@misc{indiciaea94f33302b11,
  title = {Utility of an algorithm to diagnose ectopic pregnancy.},
  author = {M V Sauer and I A Rodi},
  year = {1990},
  doi = {10.1016/0020-7292(90)90178-n},
  url = {https://pubmed.ncbi.nlm.nih.gov/1968014/},
  note = {Source identifier: 1968014}
}