@misc{indiciae19f364f1d31c,
  title = {Exercise and oligomenorrhea.},
  author = {J S Schinfeld},
  year = {1985},
  doi = {10.1016/s0015-0282(16)48757-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/4018287/},
  note = {Source identifier: 4018287}
}