title: [Triphasic combined oral steroidal contraceptives].
mesh_terms: D000328:Adult; D003277:Contraceptives, Oral, Combined; D005260:Female; D006801:Humans; D008875:Middle Aged; D045167:Progesterone Congeners
chemical_list: D003277:Contraceptives, Oral, Combined; D045167:Progesterone Congeners
vernacular_title: Trístupnová orální kombinovaná steroidní kontraceptiva.