1. Department of Clinical Sciences—Lund, Medical Faculty, Lund University , Lund , Sweden
2. Department of Endocrine Surgery, Jagiellonian University Medical College , Krakow , Poland
3. Department of Breast and Endocrine Surgery, Haukeland University Hospital , Bergen , Norway
4. Department of Surgery, Sahlgrenska University Hospital , Gothenburg , Sweden
5. Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg , Gothenburg , Sweden
6. Department of Surgery, Klinik Landstraße, Wiener Gesundheitsverbund , Vienna , Austria
7. Department of Clinical Science, University of Bergen , Bergen , Norway