1. Division of Thyroid Surgery, China–Japan Union Hospital of Jilin University, Jilin Provincial Key Laboratory of Surgical Translational Medicine, Changchun City, China;
2. Division for Endocrine and Minimally Invasive Surgery, Department of Human Pathology in Adulthood and Childhood ''G. Barresi'', University Hospital G. Martino, University of Messina, Messina, Italy