1. Department of Radiology, The Sixth Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
2. Orthopaedic Research Laboratory, Aarhus University Hospital, Aarhus, Denmark
3. MR Research Center/Institute of Clinical Medicine, Aarhus University Hospital, Aarhus, Denmark
4. Department of Orthopaedic Surgery/Orthopaedic Research Institute, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
5. Department of Orthopaedic Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China