1. Department of Orthopedics, First Affiliated Hospital of Kunming Medical University, Kunming Medical University, Kunming, Yunnan, 650032, P. R. China
2. Yunnan Key Laboratory of Stomatology and Department of Dental Research, The Affiliated Stomatology Hospital of Kunming Medical University, Kunming, Yunnan 650500, P. R. China
3. Yunnan Provincial Key Laboratory of Energy Saving in Phosphorus Chemical Engineering and New Phosphorus Materials The Higher Educational Key Laboratory for Phosphorus Chemical Engineering of Yunnan Province Faculty of Chemical Engineering Kunming University of Science and Technology, Kunming, Yunnan, 650500, P. R. China
4. Spinal Surgery, The Affiliated Hospital of Yunnan University, Yunnan University, Kunming, Yunnan, 650021, P. R. China