- Correspondence to Juan J Gómez-Reino, Rheumatology and Department of Medicine, Hospital Clínico Universitario, Universidad de Santiago de Compostela Medical School, A Choupana s/n, 15706, Santiago de Compostela, Spain;
- Received June 15, 2011
- Accepted September 10, 2011
- First published October 13, 2011.
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