@misc{indiciae1bfb1720d29f,
  title = {Ectopic pregnancy: changes in serum human chorionic gonadotropin concentration.},
  author = {P S Cartwright and D L DiPietro},
  year = {1984},
  url = {https://pubmed.ncbi.nlm.nih.gov/6691020/},
  note = {Source identifier: 6691020}
}