title: Effect of retinoic acid in lichen planus of the genitalia and perianal region.
mesh_terms: D000284:Administration, Oral; D000287:Administration, Topical; D005231:Fatty Acids, Unsaturated / Q000008:administration & dosage / Q000627:therapeutic use; D005260:Female; D005835:Genitalia; D006801:Humans; D008010:Lichen Planus / Q000188:drug therapy*; D008297:Male; D010409:Penile Diseases / Q000188:drug therapy; D012008:Recurrence; D014570:Urologic Diseases / Q000188:drug therapy; D014801:Vitamin A / Q000008:administration & dosage / Q000627:therapeutic use*
chemical_list: D005231:Fatty Acids, Unsaturated; D014801:Vitamin A