@misc{indiciae000c4a561489,
  title = {Various 18-substituted progesterones.},
  author = {R A Auel and R W Freerksen and D S Watt},
  year = {1978},
  doi = {10.1016/0039-128x(78)90050-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/663975/},
  note = {Source identifier: 663975}
}