title: Gestodene: new clinical perspectives on progestogen efficiency. Proceedings of a symposium held at the XIIth World Congress of Gynecology and Obstetrics. Rio de Janeiro, Brazil, October 1988.
mesh_terms: D003277:Contraceptives, Oral, Combined / Q000494:pharmacology*; D005260:Female; D006801:Humans; D009652:Norpregnenes / Q000494:pharmacology*
chemical_list: D003277:Contraceptives, Oral, Combined; D009652:Norpregnenes; C033273:Gestodene