- Correspondence to Dr Carlo Salvarani, Unità Operativa di Reumatologia, Arcispedale S. Maria Nuova IRCSS, V.le Risorgimento N80, Reggio Emilia 42123, Italy;
- Received June 23, 2013
- Revised August 26, 2013
- Accepted November 3, 2013
- First published December 2, 2013.
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