@misc{indiciaec80d9bc3030b,
  title = {Attempted suicide and the menstrual cycle--a negative conclusion.},
  author = {J Birtchnell and S Floyd},
  year = {1974},
  doi = {10.1016/0022-3999(74)90057-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/4435708/},
  note = {Source identifier: 4435708}
}