Geurt Schilders, Reinout Raijmakers, Kelen CR Malmegrim, Lieselotte Vande Walle, Xavier Saelens, Wilma Vree Egberts, Walther J van Venrooij, Peter Vandenabeele, Ger JM Pruijn
Arthritis Res Ther. 2007; 9(1): R12. Published online 2007 February 5. doi: 10.1186/ar2119