- Correspondence to Professor Rainer H Straub, Laboratory of Experimental Rheumatology and Neuroendocrino-Immunology, Division of Rheumatology, Department of Internal Medicine I, University Hospital, Regensburg 93042, Germany;
- Received May 4, 2013
- Revised April 12, 2014
- Accepted April 16, 2014
- First published May 7, 2014.
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