- Correspondence to Gerd R Burmester, Department of Rheumatology and Clinical Immunology, Charité-University Medicine Berlin, Charitéplatz 1, D-10117 Berlin, Germany;
- Accepted August 24, 2011
- First published March 2, 2012.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.