1. Department of Ultrasound, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
2. Department of Ultrasound, The Seventh People’s Hospital, Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
3. Endocrinology Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
4. Endocrine Unit, Clinica Liotti, Perugia, Italy
5. Department of Ultrasound, The Affiliated Jiangyin Hospital of South-East University Medical College, Jiangsu, China
6. Department of Ultrasound, The Affiliated Suzhou Hospital of Nanjing Medical University, Jiangsu, China
7. Department of Ultrasound, Sichuan Provincial People’s Hospital, Sichuan, China
8. Department of Ultrasound, The First Affiliated Hospital of Zhejiang Chinese Medical University, Zhejiang, China
9. Department of Ultrasound, The Third Affiliated Hospital of Sun Yat-sen University, Guangdong, China
10. Department of Ultrasound, Harbin Medical University Cancer Hospital, Heilongjiang, China
11. Department of Ultrasound, The Third Xiangya Hospital of Central South University, Hunan, China
12. Department of Endocrine and Ultrasound-Guided Surgery, Ospedale del Mare, Naples, Italy
13. Department of Endocrinology and Metabolism, Regina Apostolorum Hospital, Rome, Italy