- Correspondence to Nicolino Ruperto, IRCCS G. Gaslini, Pediatria II – Reumatologia, Pædiatric Rheumatology International Trials Organisation (PRINTO), EULAR Centre of Excellence in Rheumatology 2008-2013, Via G Gaslini, 5, Genova 16147, Italy;
- Accepted October 26, 2011
- First published November 27, 2011.
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