1 1st Division of General Surgery, Research Center for Endocrine Surgery, Department of Medicine and Surgery, ASST Sette Laghi Ospedale di Circolo e Fondazione Macchi-Polo Universitario, University of Insubria (Varese-Como), via Guicciardini 9, 21100 Varese, Italy.
2 Jilin Provincial Key Laboratory of Surgical Translational Medicine, China Japan Union Hospital of Jilin University, Division of Thyroid Surgery, Changchun city, Jilin Province, China.