On the progestational activity of 17alpha-ethynyl-17-hydroxy-5(10)-estren-3-one (norethynodrel).
D004963:Estrenes; D006801:Humans; D009641:Norethynodrel; D011374:Progesterone / Q000031:analogs & derivatives
C468666:4-estren-3,17-diol; D004963:Estrenes; D011374:Progesterone; D009641:Norethynodrel
PROGESTERONE/related compounds