1. Department of Endocrine Surgery, Third Chair of General Surgery; Jagiellonian University Medical College; Kraków; Poland
2. Department of Head and Neck Surgery; University of São Paulo Medical School; São Paulo; Brazil
3. Department of General, Visceral, and Vascular Surgery; Martin Luther University Halle-Wittenberg; Halle; Germany
4. Department of Surgical Sciences; Endocrine Surgery Research Center, University of Insubria; Varese-Como; Italy
5. Department of Surgery and Center for Minimally Invasive Surgery; Kliniken Essen-Mitte, Academic Teaching Hospital, University of Duisburg-Essen; Essen; Germany
6. Department of Endocrine Surgery; John Radcliffe Hospital; Oxford; United Kingdom
7. Department of Otorhinolaryngology; University of Liège; Liège; Belgium
8. Department of Otorhinolaryngology; University of Brescia; Brescia; Italy
9. Department of Head and Neck Oncology; Institute Gustave Roussy; Villejuif; France
10. Department of Surgery; Kuma Hospital; Kobe; Japan
11. Monash University Endocrine Surgery Unit; The Alfred Hospital; Melbourne; Victoria; Australia
12. Department of Surgery; Texas A&M Health Science Center College of Medicine, Scott and White Clinic; Temple; Texas; U.S.A
13. Department of Surgery; Faculty of Medical Sciences-Santa Casa; São Paulo; Brazil
14. Department of Surgery, Division of Otolaryngology; Southern Illinois University School of Medicine; Springfield; Illinois; U.S.A
15. Department of Endocrine Surgery; Poitiers University, Jean Bernard Hospital; Poitiers; France
16. Department of Breast and Endocrine Surgery; Putrajaya Hospital; Putrajaya; Malaysia