1. Department of Medicine, Shandong Medical College, Jinan 250002, Shandong, China
2. Department of Orthopedics, The Affiliated Suqian Frist People’s Hospital of Nanjing Medical University, Suqian 223899, Jiangsu, China
3. Department of Endocrinology and Metabolism, Affiliated Hospital of Guizhou Medical University, Guiyang 550001, Guizhou, China
4. Department of Medical Administration, Shandong Provincial Third Hospital, Jinan 250031, Shandong, China