1. Institute of Analytical Chemistry, University of Vienna, 1090 Vienna, Austria
2. Center for Biotechnology (CeBiTec), Bielefeld University, 33594 Bielefeld, Germany
3. Division of Rheumatology, Department of Medicine, Solna, Karolinska Institutet and Karolinska University Hospital, 17176 Stockholm, Sweden
4. Institute of Clinical Chemistry and Laboratory Medicine, Regensburg University Hospital, 93053 Regensburg, Germany
5. Department of Molecular Biosciences, University of Graz, 8010 Graz, Austria
6. Division of Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, 8036 Graz, Austria