1. Department I of Internal Medicine, University Hospital of Cologne, Center for Integrated Oncology Cologne-Bonn, CECAD Center of Excellence on ‘‘Cellular Stress Responses in Aging-Associated Diseases’’, Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany
2. Department I of Internal Medicine, University of Cologne, Cologne, Germany
3. Experimental Tumor Research, Center for Tumor Biology and Immunology, Department of Hematology, Oncology and Immunology, Philipps University Marburg, Marburg, Germany
4. Institute for Clinical Chemistry and Clinical Pharmacology, University of Bonn, Bonn, Germany
5. CECAD Center of Excellence on ‘‘Cellular Stress Responses in Aging-Associated Diseases’’, University of Cologne, Cologne, Germany