Author:
Liñán Ponce F.,Leiva Goicochea J.,Leiva C.,Sevilla Rodriguez D.,Otoya Guzmán C.,Corro García D.,Rodríguez Baldeón J.,Hidalgo Bravo E.,Obregón Atanacio G.,Loyola Macalapú I.
Publisher
BMJ Publishing Group Ltd and European League Against Rheumatism