title: Arthritis and onycophagia: a confounding factor.
authors.affiliation: Unidad de Reumatología, Hospital El Bierzo, Ponferrada, León, España. Electronic address: lpantojazarza@gmail.com.
authors.forename: Lucía
authors.initials: L
authors.lastname: Pantoja Zarza
authors.affiliation: Unidad de Reumatología, Hospital El Bierzo, Ponferrada, León, España.
authors.forename: Carolina
authors.initials: C
authors.lastname: Díez Morrondo
authors.affiliation: Servicio de Dermatología, Hospital El Bierzo, Ponferrada, León, España.
authors.forename: José Antonio
authors.initials: JA
authors.lastname: Manjón Haces
mesh_terms: D001168:Arthritis / Q000150:complications* / Q000188:drug therapy; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008875:Middle Aged; D009259:Nail Biting; D009260:Nail Diseases / Q000150:complications / Q000175:diagnosis