1. Division of Sports and Rehabilitation Medicine, Department of Cardiology, University of Ulm, Ulm, Germany
2. Department of Cardiology, Southeast University, Nanjing, China
3. Institute of Health Economics and Health Care Management, Helmholtz Center Munich, Germany
4. Schwabenland Hospital, Isny-Neutrauchburg, Germany
5. Department of Chinese Medicine Rehabilitation, Nanjing University of Chinese Medicine, Nanjing, China
6. Department of Cardiology, University of Ulm, Ulm, Germany
7. Institute of Biometrics, Ulm University, Ulm, Germany