1. Institute of Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, Greifswald, Germany
2. German Centre for Cardiovascular Research, Partner site Greifswald, Greifswald, Germany
3. Medical Department IV, Klinikum Innenstadt, Ludwig-Maximilian University of Munich, Munich, Germany
4. Institute for Community Medicine, University Medicine Greifswald, Greifswald, Germany
5. Institute of Physiology, University Medicine Greifswald, Greifswald, Germany