1. Department of Endocrinology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China (mainland)
2. Department of Ultrasound, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China (mainland)
3. Department of Nutriology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China (mainland)
4. Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China (mainland)