@misc{indiciae790d8373decd,
  title = {Oestradiol implants: what dose, how often?},
  author = {R R Guirgis},
  year = {1987},
  doi = {10.1016/s0140-6736(87)91042-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/2889055/},
  note = {Source identifier: 2889055}
}