@misc{indiciaed11247adaed0,
  title = {Intra uterine contraception.},
  author = {N C Sengupta and A D Choudhury and S R Choudhury},
  year = {1966},
  url = {https://pubmed.ncbi.nlm.nih.gov/5977005/},
  note = {Source identifier: 5977005}
}