1. Department of Internal Medicine V – Pneumology, Allergology and Intensive Care Medicine, Saarland University Medical Center, Homburg, Germany
2. Department of Internal Medicine I - Hematology, Oncology, Clinical Immunology, Rheumatology, Saarland University Medical Center, Homburg, Germany
3. Department of Internal Medicine II, Saarland University Medical Center, Homburg, Germany
4. Department of Internal Medicine, Saarland University Medical Center, Homburg, Germany
5. Department of Internal Medicine III - Cardiology, Angiology and Intensive Care Medicine, Saarland University Medical Center, Homburg, Germany
6. Department of Internal Medicine IV - Nephrology and Hypertension, Saarland University Medical Center, Homburg, Germany