@misc{indiciae1c8044db6b15,
  title = {Mortality and fertility control.},
  author = {C Tietze and S Lewit},
  year = {1977},
  doi = {10.1002/j.1879-3479.1977.tb00656.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/606579/},
  note = {Source identifier: 606579}
}