@misc{indiciae582a795d17a7,
  title = {Immediate sterility after vasectomy.},
  author = {D Urquhart-Hay},
  year = {1973},
  doi = {10.1136/bmj.3.5876.378},
  url = {https://pubmed.ncbi.nlm.nih.gov/4730187/},
  note = {Source identifier: 4730187}
}