1. Department of Internal Medicine 3, Carl Gustav Carus Medical School, University of Technology Dresden, Dresden, Germany
2. Institute of Bioinorganic and Radiopharmaceutical Chemistry, Research Center Rossendorf, Dresden, Germany
3. Institute of Medical Informatics and Biometry, Carl Gustav Carus Medical School, University of Technology Dresden, Dresden, Germany
4. Institute and Policlinic of Clinical Metabolic Research, Carl Gustav Carus Medical School, University of Technology Dresden, Dresden, Germany
5. Centre for Clinical Studies GWT, Dresden, Germany