Ponsold, K [Progestagens of the 17 alpha-CH2X-substituted 19-nortestosterone derivative type. 57. Steroids]. [electronic resource] - Die Pharmazie Dec 1978 - 792-8 p. digital Publication Type: Journal Article ISSN: 0031-7144 Subjects--Topical Terms: AnimalsEthinyl Estradiol--pharmacologyFemaleNandrolone--analogs & derivativesNorethindrone--pharmacologyProgesterone Congeners--chemical synthesisRabbits