1. Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China.
2. Department of Radiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China.
3. Department of Accupuncture, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China.
4. Department of Engineering Mechanics, Tsinghua University, Beijing 10084, China.
5. Key Lab of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201210, China
6.  Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China.
7. Key Lab of Intelligent Information Processing, Institute of Computing Technology and University of Chinese Academy of Sciences, Beijing 100190, China.
8. Ordination Dr. Sammer, Dr.med.univ. Andreas Sammer, Graz, Austria.
9. Institute of Anatomy and Clinical Morphology, University of Witten/Herdecke, Witten, Germany.
10. University Clinic for Physical Medicine, Rehabilitation and Occupational Medicine, Medical University of Vienna, Vienna, Austria.
11. Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Department of Human Anatomy, Histology and Embryology, School of Basic Medicine, Peking Union Medical College, Beijing 100005, China.