Rheumatol Int 2016 Mar 23;36(3):365-9. Epub 2015 Nov 23.
Service of Rheumatology, Hospital de Sant Joan Despí Moisés Broggi-Hospital General Hospitalet, Consorci Sanitari Integral (CSI), Avda. Jacint Verdaguer 90, 08970, Sant Joan Despí, Barcelona, Catalonia, Spain.