1. Department of Medical Ultrasound, Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute, Tongji University School of Medicine, Shanghai 200072, China
2. Thyroid Institute, Tongji University School of Medicine, Shanghai 200072, China
3. Shanghai Center for Thyroid Diseases, Shanghai 200072, China
4. Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China