@misc{indiciaead700510da2e,
  title = {Comparison between two IUDs: Progestasert and CuT 200.},
  author = {S Larsen and M K Hansen and J C Jacobsen and P Ladehoff and T Sorensen and J G Westergaard},
  year = {1981},
  url = {https://pubmed.ncbi.nlm.nih.gov/12336988/},
  note = {Source identifier: 12336988}
}