1. Leibniz-Institut für Analytische Wissenschaften-ISAS-e.V., 44227 Dortmund, Germany
2. Institute of Cardiovascular Sciences, Institute of Biomedical Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K.
3. Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, 6229 ER Maastricht, The Netherlands
4. Department of Analytical Chemistry, Faculty of Chemistry, University of Vienna, 1090 Wien, Austria
5. Department of Cardiology and Cardiovascular Medicine, University of Tübingen, 72076 Tübingen, Germany