title: Oral retinoids to treat black hairy tongue.
authors.forename: J M
authors.initials: JM
authors.lastname: McGregor
authors.forename: R J
authors.initials: RJ
authors.lastname: Hay
mesh_terms: D000328:Adult; D006801:Humans; D008297:Male; D010859:Pigmentation Disorders / Q000188:drug therapy; D014064:Tongue, Hairy / Q000188:drug therapy*; D014212:Tretinoin / Q000627:therapeutic use*
chemical_list: D014212:Tretinoin