@misc{indiciae73b4ef8583ec,
  title = {Anti-population sabbatical.},
  author = {M J Spiger},
  year = {1971},
  doi = {10.1056/nejm197103182841120},
  url = {https://pubmed.ncbi.nlm.nih.gov/5543087/},
  note = {Source identifier: 5543087}
}