| Affiliation: | 2. Department of Anesthesiology, University of California, Irvine Medical Center, Orange, California;2. Department of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California;3. Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, California;1. Department of Spinal Surgery, Hong-Hui Hospital, Medical College of Xi''an Jiaotong University, No. 76 Nanguo Road, Beilin District, Xi''an, 710054, Shanxi province, China;2. Department of Orthopaedics, The Second Affiliated Hospital, Chongqing Medical University, No. 76 Linjiang Road, Yuzhong District, Chongqing, 400010, China |
