1. Institute of Aerospace Medicine German Aerospace Center Cologne Germany
2. Institute of Clinical Pharmacology Hannover Medical School Hannover Germany
3. Department of Cardiac, Thoracic, Transplantation, and Vascular Surgery Hannover Medical School Hannover Germany
4. Department of Medicine, Division of Clinical Pharmacology, Autonomic Dysfunction Center Vanderbilt University Medical Center & Department of Biomedical Engineering, Vanderbilt University Nashville TN USA
5. Institute for Exercise and Environmental Medicine Texas Health Presbyterian Hospital Dallas TX USA
6. Department of Internal Medicine, Division of Cardiology University of Texas Southwestern Medical Center Dallas TX USA
7. Chair of Aerospace Medicine University of Cologne Cologne Germany