title: A quantitative reexamination of structure-activity relationships in the delta6-6-substituted progesterone series.
mesh_terms: D007664:Ketosteroids / Q000138:chemical synthesis; D007700:Kinetics; D011245:Pregnadienes / Q000138:chemical synthesis*; D011374:Progesterone; D011372:Progestins / Q000138:chemical synthesis*; D012044:Regression Analysis; D013329:Structure-Activity Relationship
chemical_list: D007664:Ketosteroids; D011245:Pregnadienes; D011372:Progestins; D011374:Progesterone