@misc{indiciae81befb88a43a,
  title = {Tracheobronchial cytologic changes during the menstrual cycle.},
  author = {J Chalon and D A Loew and L R Orkin},
  year = {1971},
  url = {https://pubmed.ncbi.nlm.nih.gov/4107280/},
  note = {Source identifier: 4107280}
}