title: [The development of a new highly potent progestagen, STS 557 (17 alpha-cyanomethyl-17 beta-hydroxy-13 beta-methylgona-4,9-dien-3-one) (proceedings)].
mesh_terms: D000818:Animals; D004285:Dogs; D005260:Female; D051379:Mice; D009277:Nandrolone / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000494:pharmacology; D045167:Progesterone Congeners / Q000138:chemical synthesis / Q000494:pharmacology*
chemical_list: D045167:Progesterone Congeners; C023635:dienogest; D009277:Nandrolone
vernacular_title: Zur Entwicklung eines neuen hochwirksamen Progestagens STS 557 (17 alpha-Cyanomethyl-17 beta-hydroxy-13 beta-methylgona-4,9-dien-3-on).