1. Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
2. Department of Orthopedics, Qingdao University Affiliated Qingdao Municipal Hospital, Qingdao, Shandong, China
3. Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
4. University of Toronto, Department of Physiology, Toronto, Ontario, Canada
5. Department of Endocrinology, Qilu Hospital of Shandong University, Jinan, Shandong, China