@misc{indiciae506602508f3b,
  title = {Immunoreactive estrogens in pregnancy.},
  author = {T Yamamoto and T Yanaihara and S Okinaga and K Arai},
  year = {1975},
  url = {https://pubmed.ncbi.nlm.nih.gov/1224951/},
  note = {Source identifier: 1224951}
}