@misc{indiciae4adb28e74d8b,
  title = {Menstrual patterns in ultramarathon runners.},
  author = {M A Van Gend and T D Noakes},
  year = {1987},
  url = {https://pubmed.ncbi.nlm.nih.gov/3686282/},
  note = {Source identifier: 3686282}
}