@misc{indiciae6231c1c9da7a,
  title = {Negative implant. A retrospective study.},
  author = {M Landesz and J G Worst and J V Siertsema and G Van Rij},
  year = {1993},
  doi = {10.1007/bf01204327},
  url = {https://pubmed.ncbi.nlm.nih.gov/8223095/},
  note = {Source identifier: 8223095}
}