Treatment of oral lichen planus with topical vitamin A acid.
D000287:Administration, Topical; D000368:Aged; D005260:Female; D006801:Humans; D008010:Lichen Planus / Q000188:drug therapy*; D008297:Male; D008875:Middle Aged; D009059:Mouth Diseases / Q000188:drug therapy*; D012008:Recurrence; D014212:Tretinoin / Q000008:administration & dosage / Q000627:therapeutic use*
D014212:Tretinoin