1. Department of Medical Ultrasound; Shanghai Tenth People's Hospital, Ultrasound Research and Education Institute; Shanghai China
2. Thyroid Institute; Tongji University School of Medicine; Shanghai China
3. Department of Ultrasound; Ningbo First Hospital; Ningbo China
4. Shanghai Center for Thyroid Diseases; Shanghai China
5. In-Patient Ultrasound Department; Second Affiliated Hospital of Harbin Medical University; Harbin China
6. Department of Endocrinology and Metabolism, Shanghai Tenth People's Hospital; Tongji University School of Medicine; Shanghai China