1. Department of Orthopaedic Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
2. Institue of Neuroscience, Kunming Medical University, Kunming, Yunnan, China
3. Department of Radiology and National Clinical Research Center for Geriatrics, Huaxi MR Research Center (HMMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu, China
4. College of Chemistry and Chemical Engineering, Key Laboratory of Functional Inorganic Material Chemistry of Anhui Province, Anhui University, Hefei 230601, PR China