@misc{indiciae6b076308e1f4,
  title = {[Estrogen: estrone (E1), estradiol (E2), estriol (E3) and estetrol (E4)].},
  author = {Yukiko Shimizu},
  year = {2005},
  url = {https://pubmed.ncbi.nlm.nih.gov/16149545/},
  note = {Source identifier: 16149545}
}