Letter: 5-Fluoro-uracil 5 per cent (Efudix).
D002294:Carcinoma, Squamous Cell / Q000139:chemically induced*; D005260:Female; D005472:Fluorouracil / Q000009:adverse effects* / Q000627:therapeutic use; D006801:Humans; D007642:Keratosis / Q000188:drug therapy; D012878:Skin Neoplasms / Q000139:chemically induced*
D005472:Fluorouracil