title: Black hairy tongue.
authors.affiliation: Department of Dermatology, Ramón y Cajal Hospital, University of Alcalá, Madrid, Spain. sergiovano@yahoo.es
authors.forename: Sergio
authors.initials: S
authors.lastname: Vañó-Galván
authors.forename: Pedro
authors.initials: P
authors.lastname: Jaén
mesh_terms: D000368:Aged; D006801:Humans; D008297:Male; D014064:Tongue, Hairy / Q000175:diagnosis* / Q000628:therapy