1. Department of Biomedical and Dental Sciences and Morpho‐Functional Imaging, Nuclear Medicine Unit University of Messina Messina Italy
2. Thyroid Committee European Association of Nuclear Medicine Vienna Austria
3. Department of Clinical and Experimental Medicine University of Messina Messina Italy
4. Endocrine Unit “G. Martino” University Hospital Messina Italy
5. Clinic for Nuclear Medicine and Competence Centre for Thyroid Diseases Imaging Institute of Southern Switzerland, EOC Bellinzona Switzerland
6. Clinic for Nuclear Medicine University Hospital and University of Zurich Zurich Switzerland