title: Oral contraceptives and erythema nodosum: report of a case.
mesh_terms: D000328:Adult; D004893:Erythema Nodosum / Q000139:chemically induced*; D004997:Ethinyl Estradiol / Q000009:adverse effects*; D019304:Ethinyl Estradiol-Norgestrel Combination; D005260:Female; D006801:Humans; D009644:Norgestrel / Q000009:adverse effects*
chemical_list: D009644:Norgestrel; D004997:Ethinyl Estradiol; D019304:Ethinyl Estradiol-Norgestrel Combination