@misc{indiciae46e61f92c5e2,
  title = {Sperm-counts after vasectomy.},
  author = {L N Jackson},
  year = {1973},
  doi = {10.1016/s0140-6736(73)92156-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/4120745/},
  note = {Source identifier: 4120745}
}