1. Department of Endocrinology Diabetes and Metabolism, Athens Medical Center Athens Greece
2. Faculty of Medicine University of Belgrade Dr Subotića 8 Belgrade Serbia
3. Department of Endocrinology University of Belgrade Belgrade Serbia
4. Department of Endocrinology and Metabolism Odense University Hospital Odense Denmark
5. British Thyroid Foundation Harrogate UK
6. Department of Endocrinology Royal Victoria Infirmary Newcastle upon Tyne UK