title: [Affinity of five progestin derivatives to progesterone receptors].
mesh_terms: D000818:Animals; D001667:Binding, Competitive; D004717:Endometrium / Q000378:metabolism; D005260:Female; D066298:In Vitro Techniques; D011372:Progestins / Q000378:metabolism*; D011817:Rabbits; D011980:Receptors, Progesterone / Q000032:analysis / Q000378:metabolism*; D014461:Ultracentrifugation
chemical_list: D011372:Progestins; D011980:Receptors, Progesterone