1. 2nd Department of Internal Medicine, HELIOS-Klinikum Erfurt, Erfurt, Germany
2. Institute of Pathology, HELIOS-Klinikum Erfurt, Erfurt, Germany
3. 3rd Department of Internal Medicine, HELIOS-Klinikum Erfurt, Erfurt, Germany
4. Department of Nuclear Medicine, HELIOS-Klinikum Erfurt, Erfurt, Germany
5. Department of General Surgery, HELIOS-Klinikum Erfurt, Erfurt, Germany