title: [The effect of two steroid contraceptives on the function of rRNA genes of users].
mesh_terms: D003271:Contraceptive Agents, Female / Q000494:pharmacology*; D005260:Female; D006801:Humans; D006908:Hydroxyprogesterones / Q000494:pharmacology; D009697:Nucleolus Organizer Region / Q000187:drug effects; D012335:RNA, Ribosomal / Q000187:drug effects*
chemical_list: D003271:Contraceptive Agents, Female; D006908:Hydroxyprogesterones; D012335:RNA, Ribosomal