@misc{indiciae54e77d7a2ae1,
  title = {Ectopic pregnancy.},
  author = {R G Berg and R C Barnett and B G Field and M Farmer and R L Scheibel},
  year = {1981},
  url = {https://pubmed.ncbi.nlm.nih.gov/7293912/},
  note = {Source identifier: 7293912}
}