1. Gesellschaft zur Förderung der Analytischen Wissenschaften e.V. ISAS-Leibniz Institute for Analytical Sciences; 44227 Dortmund Germany
2. Department of Clinical Chemistry and Transfusion Medicine; Institute of Biomedicine; University of Gothenburg; 40530 Gothenburg Sweden
3. Proteomics Core Facility; University of Gothenburg; 40530 Gothenburg Sweden