title: Letter: Eugynon 30 and dermatitis.
mesh_terms: D003276:Contraceptives, Oral / Q000009:adverse effects*; D003875:Drug Eruptions / Q000209:etiology*; D009644:Norgestrel / Q000009:adverse effects*; D010507:Periodicity
chemical_list: D003276:Contraceptives, Oral; D009644:Norgestrel