@misc{indiciae778348993e2f,
  title = {Letter: One thousand vasectomies.},
  author = {M Altman},
  year = {1974},
  doi = {10.1136/bmj.1.5900.198-d},
  url = {https://pubmed.ncbi.nlm.nih.gov/4811853/},
  note = {Source identifier: 4811853}
}