1. Department of Endocrinology, Zhongda Hospital, Institute of Diabetes, Medical School, Southeast University, Nanjing, People’s Republic of China
2. Department of Internal Medicine, Division of Sports and Rehabilitation Medicine, Ulm University, Ulm, Germany
3. Department of Health Sciences and Sports Medicine, University of Physical Education, Budapest, Hungary
4. Department of Sports Medicine, University Hospital of Tübingen, Tübingen, Germany
5. Department of Exercise and Health, Institute of Sports Science, Leibniz University of Hannover, Hannover, Germany
6. Department of Sports Medicine, Justus-Liebig University Giessen, Giessen, Germany