Johanna T Gustafsson*, Julia F Simard, Iva Gunnarsson, Kerstin Elvin, Ingrid E Lundberg, Lars-Olof Hansson, Anders Larsson and Elisabet Svenungsson
* Corresponding author: Johanna T Gustafsson johanna.gustafsson@karolinska.se
Arthritis Research & Therapy 2012, 14:R46 doi:10.1186/ar3759