Erythema nodosum and oral contraceptives.
D000328:Adult; D003276:Contraceptives, Oral / Q000009:adverse effects*; D003277:Contraceptives, Oral, Combined / Q000009:adverse effects*; D004893:Erythema Nodosum / Q000139:chemically induced*; D004997:Ethinyl Estradiol / Q000009:adverse effects; D005260:Female; D006801:Humans; D008234:Lynestrenol / Q000009:adverse effects
D003276:Contraceptives, Oral; D003277:Contraceptives, Oral, Combined; D004997:Ethinyl Estradiol; D008234:Lynestrenol