@misc{indiciae98a769c0de98,
  title = {Steroid antifertility agents. Ionic complexes of basic derivatives for prolonged action.},
  author = {A P Gray and T N Yamauchi},
  year = {1978},
  doi = {10.1021/jm00205a027},
  url = {https://pubmed.ncbi.nlm.nih.gov/671469/},
  note = {Source identifier: 671469}
}