title: Oral lichen planus--a study of fifty-four cases.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008010:Lichen Planus / Q000473:pathology* / Q000523:psychology; D008297:Male; D008875:Middle Aged; D009059:Mouth Diseases / Q000473:pathology* / Q000523:psychology