
1) Hormonal contraception
Found on
https://www.crosswordclues.com/clue/estetrol

Estetrol (E4), or 15α-hydroxyestriol, is an estrogen steroid hormone, found in detectable levels in maternal serum at around week 20. Estetrol is a human steroid, produced by the fetal liver during pregnancy only. This natural hormone was discovered in urine of pregnant women by Diczfalusy and coworkers in 1965. Estetrol has the structure of an e...
Found on
http://en.wikipedia.org/wiki/Estetrol

<chemical> Estra-1,3,5(10)-triene-3,15 alpha,16 alpha,17 beta-tetrol. A metabolite of estradiol in man, with oestrogenic properties. ... Chemical name: Estra-1,3,5(10)-triene-3,15,16,17-tetrol, (15alpha,16alpha,17beta)- ... (12 Dec 1998) ...
Found on
http://www.encyclo.co.uk/local/20973
No exact match found.