More information from the department of rheumatology, University Medical Centre Nijmegen
http://www.umcn.nl/Research/Departments/Rheumatology
The University of Nijmegen medical centre
http://www.umcn.nl/
The European League Against Rheumatism
http://www.eular.org/
The official EULAR Journal: Annals of the Rheumatic diseases
http://www.annrheumdis.com/
The American College of Rheumatology
http://www.rheumatology.org/