1 Department of Radiology, the Affiliated Hospital of Nanjing University of Chinese Medicine, 155 Hanzhong road, Nanjing 210029, China.
2 Department of Radiology, Shanghai Longhua Hospital, Shanghai 200233, China.
3 Center for Musculoskeletal Research, School of Medicine and Dentistry, University of Rochester, NY 14642, USA.
4 Department of Radiology, the Affiliated Hospital of Nanjing University of Chinese Medicine, 155 Hanzhong road, Nanjing 210029, China. Electronic address: wangjianhua84@163.com.
5 Department of Radiology, the Affiliated Hospital of Nanjing University of Chinese Medicine, 155 Hanzhong road, Nanjing 210029, China. Electronic address: chxwin@163.com.