1. Department of Thyroid Breast Surgery; Cangzhou People's Hospital; Cangzhou China
2. Department of Nephrology; Cangzhou People's Hospital; Cangzhou China
3. Department of Endocrinology; Hebei General Hospital; Shijiazhuang China
4. Department of Nephrology; China-Japan Friendship Hospital; Beijing China
5. Endoscopy Center; China-Japan Friendship Hospital; Beijing China