@misc{indiciaedc37169c3cd6, title = {[Estrogen: estrone (E1), estradiol (E2), estriol (E3) and estetrol (4)].}, author = {Y Shimizu and T Yanaihara}, year = {1999}, url = {https://pubmed.ncbi.nlm.nih.gov/10778113/}, note = {Source identifier: 10778113} }