Effects of certain 19-nor steroids on reproductive processes in animals.
D000818:Animals; D001686:Biological Phenomena; D011374:Progesterone / Q000494:pharmacology*; D012098:Reproduction / Q000187:drug effects*; D013256:Steroids / Q000494:pharmacology*
D013256:Steroids; D011374:Progesterone
PROGESTERONE/effects; REPRODUCTION/effect of drugs on; STEROIDS/effects