1. Department of Endocrinology, Key Laboratory of Endocrinology, Ministry of Health, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
2. Department of Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
3. Department of Pediatrics, The Second Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300150, China
4. Department of Spine Surgery, Tianjin Union Medical Center, Tianjin Institute of Spine, Tianjin 300121, China