- Correspondence to George A W Bruyn, Department of Rheumatology, MC Groep Hospitals, Lelystad 8333 AA, The Netherlands;
- Received March 10, 2013
- Revised May 20, 2013
- Accepted June 28, 2013
- First published August 12, 2013.
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.