@misc{indiciaeb89fdbad644f,
  title = {Ovulatory dysfunction during continuous administration of low-dose levonorgestrel by subdermal implants.},
  author = {A Faundes and V Brache and A S Tejada and L Cochon and F Alvarez-Sanchez},
  year = {1991},
  url = {https://pubmed.ncbi.nlm.nih.gov/1906017/},
  note = {Source identifier: 1906017}
}