1. Karolinska University Hospital, Solna, Sweden, Karolinska InstituteStockholmSweden
2. University of Erlangen–NurembergErlangenGermany
3. University of PécsPécsHungary
4. Medizinische Poliklinik, University of MunichMunichGermany
5. State Research Institute Centre for Innovative MedicineVilniusLithuania
6. Karolinska University Hospital, Solna, and Karolinska InstituteStockholmSweden
7. Center of Experimental Rheumatology and University Hospital ZurichZurichSwitzerland