title: [Preliminary observations of local treatment of oral leukoplakia with retinoic acid (author's transl)].
mesh_terms: D000328:Adult; D000368:Aged; D004341:Drug Evaluation; D005260:Female; D006801:Humans; D007972:Leukoplakia, Oral / Q000188:drug therapy*; D008297:Male; D008875:Middle Aged; D012008:Recurrence; D014212:Tretinoin / Q000627:therapeutic use*
chemical_list: D014212:Tretinoin