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Kaisa E Happonen, Tore Saxne, Pierre Geborek, Maria Andersson, Anders A Bengtsson, Roger Hesselstrand, Dick Heinegård and Anna M Blom*
* Corresponding author: Anna M Blom anna.blom@med.lu.se
Arthritis Research & Therapy 2012, 14:R15 doi:10.1186/ar3694