title: Observations with Ovidon.
mesh_terms: D003276:Contraceptives, Oral / Q000009:adverse effects / Q000494:pharmacology*; D004361:Drug Tolerance; D004997:Ethinyl Estradiol / Q000009:adverse effects / Q000494:pharmacology*; D005260:Female; D006801:Humans; D009644:Norgestrel / Q000009:adverse effects / Q000494:pharmacology*; D010053:Ovary / Q000187:drug effects; D011247:Pregnancy
chemical_list: D003276:Contraceptives, Oral; D009644:Norgestrel; D004997:Ethinyl Estradiol