1. Korea University Medical Center (KUMC) Thyroid Center, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea.
2. Division of Thyroid Surgery, Jilin Provincial Key Laboratory of Surgical Translational Medicine, China-Japan Union Hospital of Jilin University, Changchun, China.
3. Department of Otolaryngology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.
4. Department of Surgery, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul, Korea.
5. 1st Division of General Surgery, Research Center for Endocrine Surgery, Department of Medicine and Surgery, ASST dei Sette Laghi Ospedale di Circolo e Fondazione Macchi, Polo Universitario, University of Insubria (Varese-Como), Varese, Italy.