@misc{indiciae1c5e23658dba,
  title = {Very early abortion using syringe as vacuum source.},
  author = {H Karman and M Potts},
  year = {1972},
  doi = {10.1016/s0140-6736(72)91225-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/4112188/},
  note = {Source identifier: 4112188}
}