title: Oral contraceptives and erythema nodosum.
mesh_terms: D000328:Adult; D003276:Contraceptives, Oral / Q000009:adverse effects*; D004893:Erythema Nodosum / Q000139:chemically induced*; D004997:Ethinyl Estradiol / Q000009:adverse effects; D005260:Female; D006801:Humans; D008656:Mestranol / Q000009:adverse effects; D009640:Norethindrone / Q000009:adverse effects; D009644:Norgestrel / Q000009:adverse effects
chemical_list: D003276:Contraceptives, Oral; D009644:Norgestrel; D004997:Ethinyl Estradiol; D008656:Mestranol; D009640:Norethindrone