@misc{indiciaec7549022c1a3,
  title = {Luteal contraception.},
  author = {S Yen and G Garzo and J Liu},
  year = {1987},
  doi = {10.1016/0010-7824(87)90118-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/2824125/},
  note = {Source identifier: 2824125}
}