@misc{indiciae8e24995d3eca,
  title = {A modified competitive protein binding method for measuring plasma progesterone levels.},
  author = {G Irving and D E Jones and A Knifton},
  year = {1971},
  doi = {10.1111/j.2042-7158.1971.tb08632.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4396879/},
  note = {Source identifier: 4396879}
}